![LEGO 9786-1 Robo Technology Set [USB Cable]](https://img.brickpricewatch.com/images/3100e6635dead1d9b25c67caf470a620db4bd57d90aaaab05e1b89c70b7caa69.webp)
RCX · 9786-1
LEGO 9786-1 Robo Technology Set [USB Cable]
New / sealed value$266.8677.9% above original retail
Original retail$149.99Launch price
Used value$107.80Current estimate
90-day trendN/A188 months recorded
PRICE GUIDE
Current LEGO 9786-1 values
Condition-specific market estimates compared with the original retail price.
New / sealed value
$266.86
+77.9% vs. retail
Used value
$107.80
$105.62 – $129.36
Original retail
$149.99
Launch price
Market values are estimates for the set condition shown; live retailer and marketplace prices may differ.
MARKET TREND
Price history
Source-reported monthly market closes through Aug 2026; these can differ from the current estimated market value.
Monthly close$380.38188 plotted months
Used value$107.80Current estimate
Used range$105.62 – $129.36Current low to high
Latest monthly close$380.38
Period low$190.31
Period high$407.05
Period change+68.2%
MARKET VALUE
Sealed price history
Latest
$380.38
+68.2% over period
View monthly price data
| Month | Open | Low | High | Close | Sales | Source |
|---|---|---|---|---|---|---|
| 2026-08 | $328.51 | $311.22 | $414.96 | $380.38 | N/A | Market data provider |
| 2026-07 | $316.82 | $305.33 | $374.28 | $351.29 | N/A | Market data provider |
| 2026-06 | $327.14 | $309.92 | $413.23 | $378.79 | N/A | Market data provider |
| 2026-05 | $328.38 | $316.47 | $387.93 | $364.11 | N/A | Market data provider |
| 2026-04 | $306.79 | $290.64 | $387.53 | $355.23 | N/A | Market data provider |
| 2026-03 | $327.00 | $315.14 | $386.30 | $362.58 | N/A | Market data provider |
| 2026-02 | $324.44 | $307.37 | $409.82 | $375.67 | N/A | Market data provider |
| 2026-01 | $263.96 | $254.38 | $311.82 | $292.68 | N/A | Market data provider |
| 2025-12 | $236.23 | $223.80 | $298.40 | $273.53 | N/A | Market data provider |
| 2025-11 | $206.60 | $199.10 | $244.06 | $229.07 | N/A | Market data provider |
| 2025-10 | $183.06 | $173.43 | $231.24 | $211.97 | N/A | Market data provider |
| 2025-09 | $189.81 | $182.92 | $224.23 | $210.46 | N/A | Market data provider |
| 2025-08 | $181.38 | $171.83 | $229.11 | $210.02 | N/A | Market data provider |
| 2025-07 | $177.11 | $170.68 | $209.22 | $196.38 | N/A | Market data provider |
| 2025-06 | $176.15 | $166.88 | $222.50 | $203.96 | N/A | Market data provider |
| 2025-05 | $172.00 | $165.76 | $203.19 | $190.71 | N/A | Market data provider |
| 2025-04 | $164.36 | $155.71 | $207.62 | $190.31 | N/A | Market data provider |
| 2025-03 | $213.02 | $205.29 | $251.65 | $236.20 | N/A | Market data provider |
| 2025-02 | $253.99 | $240.62 | $320.83 | $294.09 | N/A | Market data provider |
| 2025-01 | $303.53 | $292.52 | $358.57 | $336.55 | N/A | Market data provider |
| 2024-12 | $351.54 | $333.04 | $444.05 | $407.05 | N/A | Market data provider |
| 2024-11 | $340.83 | $328.47 | $402.64 | $377.92 | N/A | Market data provider |
| 2024-10 | $310.44 | $294.11 | $392.14 | $359.46 | N/A | Market data provider |
| 2024-09 | $299.24 | $288.39 | $353.51 | $331.80 | N/A | Market data provider |
| 2024-08 | $309.09 | $292.82 | $390.43 | $357.89 | N/A | Market data provider |
| 2024-07 | $316.34 | $304.87 | $373.71 | $350.76 | N/A | Market data provider |
| 2024-06 | $295.66 | $280.10 | $373.47 | $342.35 | N/A | Market data provider |
| 2024-05 | $314.95 | $303.53 | $372.06 | $349.22 | N/A | Market data provider |
| 2024-04 | $306.38 | $290.25 | $387.00 | $354.75 | N/A | Market data provider |
| 2024-03 | $295.29 | $284.58 | $348.84 | $327.42 | N/A | Market data provider |
| 2024-02 | $305.04 | $288.99 | $385.32 | $353.21 | N/A | Market data provider |
| 2024-01 | $312.19 | $300.87 | $368.80 | $346.16 | N/A | Market data provider |
| 2023-12 | $342.37 | $324.35 | $432.46 | $396.42 | N/A | Market data provider |
| 2023-11 | $331.92 | $319.88 | $392.11 | $368.04 | N/A | Market data provider |
| 2023-10 | $302.31 | $286.40 | $381.86 | $350.04 | N/A | Market data provider |
| 2023-09 | $291.38 | $280.82 | $344.23 | $323.09 | N/A | Market data provider |
| 2023-08 | $300.95 | $285.11 | $380.15 | $348.47 | N/A | Market data provider |
| 2023-07 | $324.24 | $312.48 | $383.04 | $359.52 | N/A | Market data provider |
| 2023-06 | $302.53 | $286.61 | $382.15 | $350.30 | N/A | Market data provider |
| 2023-05 | $291.72 | $281.14 | $344.62 | $323.46 | N/A | Market data provider |
| 2023-04 | $254.10 | $240.72 | $320.96 | $294.22 | N/A | Market data provider |
| 2023-03 | $305.21 | $294.14 | $360.56 | $338.42 | N/A | Market data provider |
| 2023-02 | $296.93 | $281.30 | $375.07 | $343.81 | N/A | Market data provider |
| 2023-01 | $287.71 | $277.27 | $339.88 | $319.01 | N/A | Market data provider |
| 2022-12 | $333.22 | $315.68 | $420.91 | $385.83 | N/A | Market data provider |
| 2022-11 | $323.03 | $311.32 | $381.61 | $358.18 | N/A | Market data provider |
| 2022-10 | $297.08 | $281.44 | $375.26 | $343.99 | N/A | Market data provider |
| 2022-09 | $234.67 | $226.16 | $277.23 | $260.20 | N/A | Market data provider |
| 2022-08 | $281.35 | $266.55 | $355.40 | $325.78 | N/A | Market data provider |
| 2022-07 | $299.67 | $288.80 | $354.02 | $332.28 | N/A | Market data provider |
| 2022-06 | $304.87 | $288.83 | $385.10 | $353.01 | N/A | Market data provider |
| 2022-05 | $295.38 | $284.67 | $348.95 | $327.52 | N/A | Market data provider |
| 2022-04 | $275.90 | $261.38 | $348.51 | $319.47 | N/A | Market data provider |
| 2022-03 | $320.37 | $308.75 | $378.47 | $355.23 | N/A | Market data provider |
| 2022-02 | $288.81 | $273.61 | $364.82 | $334.42 | N/A | Market data provider |
| 2022-01 | $295.54 | $284.82 | $349.14 | $327.70 | N/A | Market data provider |
| 2021-12 | $324.07 | $307.01 | $409.35 | $375.24 | N/A | Market data provider |
| 2021-11 | $314.14 | $302.75 | $371.11 | $348.33 | N/A | Market data provider |
| 2021-10 | $286.08 | $271.02 | $361.36 | $331.25 | N/A | Market data provider |
| 2021-09 | $275.71 | $265.71 | $325.71 | $305.71 | N/A | Market data provider |
| 2021-08 | $284.72 | $269.74 | $359.65 | $329.68 | N/A | Market data provider |
| 2021-07 | $291.35 | $280.78 | $344.18 | $323.05 | N/A | Market data provider |
| 2021-06 | $272.26 | $257.93 | $343.90 | $315.24 | N/A | Market data provider |
| 2021-05 | $289.96 | $279.44 | $342.54 | $321.51 | N/A | Market data provider |
| 2021-04 | $282.01 | $267.17 | $356.23 | $326.54 | N/A | Market data provider |
| 2021-03 | $271.76 | $261.90 | $321.04 | $301.33 | N/A | Market data provider |
| 2021-02 | $280.70 | $265.93 | $354.57 | $325.02 | N/A | Market data provider |
| 2021-01 | $287.22 | $276.80 | $339.31 | $318.47 | N/A | Market data provider |
| 2020-12 | $314.92 | $298.35 | $397.80 | $364.65 | N/A | Market data provider |
| 2020-11 | $305.26 | $294.18 | $360.61 | $338.47 | N/A | Market data provider |
| 2020-10 | $277.97 | $263.34 | $351.12 | $321.86 | N/A | Market data provider |
| 2020-09 | $267.87 | $258.15 | $316.45 | $297.02 | N/A | Market data provider |
| 2020-08 | $276.61 | $262.05 | $349.40 | $320.29 | N/A | Market data provider |
| 2020-07 | $283.03 | $272.76 | $334.35 | $313.82 | N/A | Market data provider |
| 2020-06 | $264.46 | $250.54 | $334.05 | $306.22 | N/A | Market data provider |
| 2020-05 | $281.63 | $271.42 | $332.71 | $312.28 | N/A | Market data provider |
| 2020-04 | $273.90 | $259.48 | $345.98 | $317.15 | N/A | Market data provider |
| 2020-03 | $263.92 | $254.35 | $311.78 | $292.64 | N/A | Market data provider |
| 2020-02 | $272.56 | $258.22 | $344.29 | $315.60 | N/A | Market data provider |
| 2020-01 | $278.88 | $268.76 | $329.45 | $309.22 | N/A | Market data provider |
| 2019-12 | $305.75 | $289.66 | $386.21 | $354.03 | N/A | Market data provider |
| 2019-11 | $296.34 | $285.59 | $350.08 | $328.59 | N/A | Market data provider |
| 2019-10 | $269.83 | $255.63 | $340.84 | $312.43 | N/A | Market data provider |
| 2019-09 | $260.01 | $250.58 | $307.16 | $288.30 | N/A | Market data provider |
| 2019-08 | $268.47 | $254.34 | $339.12 | $310.86 | N/A | Market data provider |
| 2019-07 | $274.68 | $264.72 | $324.49 | $304.57 | N/A | Market data provider |
| 2019-06 | $256.64 | $243.14 | $324.18 | $297.17 | N/A | Market data provider |
| 2019-05 | $273.29 | $263.38 | $322.85 | $303.02 | N/A | Market data provider |
| 2019-04 | $265.76 | $251.77 | $335.70 | $307.72 | N/A | Market data provider |
| 2019-03 | $256.06 | $246.77 | $302.49 | $283.92 | N/A | Market data provider |
| 2019-02 | $264.45 | $250.53 | $334.04 | $306.21 | N/A | Market data provider |
| 2019-01 | $270.55 | $260.74 | $319.62 | $299.99 | N/A | Market data provider |
| 2018-12 | $296.60 | $280.99 | $374.65 | $343.43 | N/A | Market data provider |
| 2018-11 | $287.45 | $277.03 | $339.58 | $318.73 | N/A | Market data provider |
| 2018-10 | $261.72 | $247.94 | $330.59 | $303.04 | N/A | Market data provider |
| 2018-09 | $252.17 | $243.03 | $297.90 | $279.61 | N/A | Market data provider |
| 2018-08 | $260.36 | $246.66 | $328.88 | $301.47 | N/A | Market data provider |
| 2018-07 | $266.36 | $256.70 | $314.66 | $295.34 | N/A | Market data provider |
| 2018-06 | $248.85 | $235.75 | $314.33 | $288.14 | N/A | Market data provider |
| 2018-05 | $264.97 | $255.36 | $313.02 | $293.80 | N/A | Market data provider |
| 2018-04 | $257.65 | $244.09 | $325.45 | $298.33 | N/A | Market data provider |
| 2018-03 | $248.22 | $239.22 | $293.24 | $275.23 | N/A | Market data provider |
| 2018-02 | $256.34 | $242.84 | $323.79 | $296.81 | N/A | Market data provider |
| 2018-01 | $262.23 | $252.72 | $309.78 | $290.76 | N/A | Market data provider |
| 2017-12 | $287.45 | $272.32 | $363.10 | $332.84 | N/A | Market data provider |
| 2017-11 | $278.57 | $268.46 | $329.08 | $308.88 | N/A | Market data provider |
| 2017-10 | $253.60 | $240.25 | $320.34 | $293.64 | N/A | Market data provider |
| 2017-09 | $244.33 | $235.47 | $288.64 | $270.92 | N/A | Market data provider |
| 2017-08 | $252.25 | $238.97 | $318.63 | $292.07 | N/A | Market data provider |
| 2017-07 | $258.03 | $248.68 | $304.83 | $286.11 | N/A | Market data provider |
| 2017-06 | $241.05 | $228.36 | $304.49 | $279.11 | N/A | Market data provider |
| 2017-05 | $256.64 | $247.33 | $303.18 | $284.57 | N/A | Market data provider |
| 2017-04 | $249.53 | $236.40 | $315.20 | $288.93 | N/A | Market data provider |
| 2017-03 | $240.38 | $231.66 | $283.98 | $266.54 | N/A | Market data provider |
| 2017-02 | $248.22 | $235.16 | $313.54 | $287.42 | N/A | Market data provider |
| 2017-01 | $253.91 | $244.70 | $299.95 | $281.53 | N/A | Market data provider |
| 2016-12 | $278.30 | $263.66 | $351.54 | $322.25 | N/A | Market data provider |
| 2016-11 | $269.68 | $259.90 | $318.58 | $299.02 | N/A | Market data provider |
| 2016-10 | $245.49 | $232.57 | $310.09 | $284.25 | N/A | Market data provider |
| 2016-09 | $236.50 | $227.92 | $279.38 | $262.23 | N/A | Market data provider |
| 2016-08 | $244.13 | $231.28 | $308.38 | $282.68 | N/A | Market data provider |
| 2016-07 | $249.71 | $240.65 | $295.00 | $276.88 | N/A | Market data provider |
| 2016-06 | $233.26 | $220.98 | $294.64 | $270.08 | N/A | Market data provider |
| 2016-05 | $248.32 | $239.31 | $293.35 | $275.34 | N/A | Market data provider |
| 2016-04 | $241.42 | $228.71 | $304.95 | $279.54 | N/A | Market data provider |
| 2016-03 | $232.54 | $224.11 | $274.72 | $257.85 | N/A | Market data provider |
| 2016-02 | $240.09 | $227.45 | $303.27 | $277.99 | N/A | Market data provider |
| 2016-01 | $245.56 | $236.65 | $290.09 | $272.28 | N/A | Market data provider |
| 2015-12 | $269.13 | $254.97 | $339.96 | $311.63 | N/A | Market data provider |
| 2015-11 | $260.76 | $251.31 | $308.05 | $289.14 | N/A | Market data provider |
| 2015-10 | $237.35 | $224.86 | $299.81 | $274.83 | N/A | Market data provider |
| 2015-09 | $228.64 | $220.34 | $270.10 | $253.51 | N/A | Market data provider |
| 2015-08 | $236.00 | $223.57 | $298.10 | $273.26 | N/A | Market data provider |
| 2015-07 | $241.37 | $232.61 | $285.14 | $267.63 | N/A | Market data provider |
| 2015-06 | $225.44 | $213.57 | $284.76 | $261.03 | N/A | Market data provider |
| 2015-05 | $239.97 | $231.27 | $283.49 | $266.09 | N/A | Market data provider |
| 2015-04 | $233.28 | $221.01 | $294.67 | $270.12 | N/A | Market data provider |
| 2015-03 | $224.69 | $216.54 | $265.43 | $249.13 | N/A | Market data provider |
| 2015-02 | $231.97 | $219.76 | $293.02 | $268.60 | N/A | Market data provider |
| 2015-01 | $237.24 | $228.63 | $280.26 | $263.05 | N/A | Market data provider |
| 2014-12 | $259.98 | $246.30 | $328.40 | $301.03 | N/A | Market data provider |
| 2014-11 | $251.88 | $242.74 | $297.55 | $279.28 | N/A | Market data provider |
| 2014-10 | $229.24 | $217.17 | $289.56 | $265.43 | N/A | Market data provider |
| 2014-09 | $220.80 | $212.79 | $260.84 | $244.82 | N/A | Market data provider |
| 2014-08 | $227.88 | $215.89 | $287.85 | $263.86 | N/A | Market data provider |
| 2014-07 | $233.04 | $224.59 | $275.30 | $258.40 | N/A | Market data provider |
| 2014-06 | $217.64 | $206.19 | $274.92 | $252.01 | N/A | Market data provider |
| 2014-05 | $231.65 | $223.25 | $273.66 | $256.86 | N/A | Market data provider |
| 2014-04 | $225.17 | $213.32 | $284.42 | $260.72 | N/A | Market data provider |
| 2014-03 | $216.85 | $208.98 | $256.17 | $240.44 | N/A | Market data provider |
| 2014-02 | $223.86 | $212.08 | $282.77 | $259.20 | N/A | Market data provider |
| 2014-01 | $228.91 | $220.61 | $270.43 | $253.82 | N/A | Market data provider |
| 2013-12 | $250.83 | $237.63 | $316.84 | $290.44 | N/A | Market data provider |
| 2013-11 | $242.99 | $234.17 | $287.05 | $269.43 | N/A | Market data provider |
| 2013-10 | $221.12 | $209.49 | $279.31 | $256.04 | N/A | Market data provider |
| 2013-09 | $212.96 | $205.24 | $251.58 | $236.13 | N/A | Market data provider |
| 2013-08 | $219.77 | $208.20 | $277.60 | $254.47 | N/A | Market data provider |
| 2013-07 | $224.72 | $216.57 | $265.47 | $249.17 | N/A | Market data provider |
| 2013-06 | $209.85 | $198.80 | $265.07 | $242.98 | N/A | Market data provider |
| 2013-05 | $223.33 | $215.23 | $263.83 | $247.63 | N/A | Market data provider |
| 2013-04 | $217.06 | $205.63 | $274.18 | $251.33 | N/A | Market data provider |
| 2013-03 | $209.01 | $201.43 | $246.91 | $231.75 | N/A | Market data provider |
| 2013-02 | $215.74 | $204.39 | $272.52 | $249.81 | N/A | Market data provider |
| 2013-01 | $220.59 | $212.59 | $260.60 | $244.59 | N/A | Market data provider |
| 2012-12 | $241.69 | $228.97 | $305.29 | $279.85 | N/A | Market data provider |
| 2012-11 | $234.10 | $225.61 | $276.55 | $259.57 | N/A | Market data provider |
| 2012-10 | $213.01 | $201.80 | $269.06 | $246.64 | N/A | Market data provider |
| 2012-09 | $205.12 | $197.68 | $242.32 | $227.44 | N/A | Market data provider |
| 2012-08 | $211.65 | $200.51 | $267.35 | $245.07 | N/A | Market data provider |
| 2012-07 | $216.40 | $208.55 | $255.64 | $239.94 | N/A | Market data provider |
| 2012-06 | $202.05 | $191.42 | $255.22 | $233.95 | N/A | Market data provider |
| 2012-05 | $215.01 | $207.21 | $254.00 | $238.40 | N/A | Market data provider |
| 2012-04 | $208.94 | $197.94 | $263.93 | $241.93 | N/A | Market data provider |
| 2012-03 | $201.17 | $193.87 | $237.65 | $223.06 | N/A | Market data provider |
| 2012-02 | $207.61 | $196.68 | $262.24 | $240.39 | N/A | Market data provider |
| 2012-01 | $212.25 | $204.55 | $250.74 | $235.34 | N/A | Market data provider |
| 2011-12 | $232.51 | $220.28 | $293.70 | $269.23 | N/A | Market data provider |
| 2011-11 | $225.18 | $217.02 | $266.02 | $249.69 | N/A | Market data provider |
| 2011-10 | $204.87 | $194.09 | $258.79 | $237.22 | N/A | Market data provider |
| 2011-09 | $197.26 | $190.11 | $233.04 | $218.73 | N/A | Market data provider |
| 2011-08 | $203.52 | $192.81 | $257.07 | $235.65 | N/A | Market data provider |
| 2011-07 | $208.05 | $200.50 | $245.78 | $230.69 | N/A | Market data provider |
| 2011-06 | $194.23 | $184.01 | $245.35 | $224.90 | N/A | Market data provider |
| 2011-05 | $206.66 | $199.16 | $244.14 | $229.15 | N/A | Market data provider |
| 2011-04 | $200.80 | $190.24 | $253.65 | $232.51 | N/A | Market data provider |
| 2011-03 | $193.31 | $186.30 | $228.37 | $214.34 | N/A | Market data provider |
| 2011-02 | $199.49 | $188.99 | $251.99 | $230.99 | N/A | Market data provider |
| 2011-01 | $203.92 | $196.53 | $240.90 | $226.11 | N/A | Market data provider |
EXTERNAL ESTIMATE
Independent Market Value Trend
Source-reported new/sealed market estimates, aggregated monthly and displayed in USD.
Latest estimate$290.56
Period low$262.02
Period high$334.74
Period change-13.2%
MARKET VALUE
Independent new/sealed market value
Latest
$290.56
-13.2% over period
View independent market value data
| Month | Open | Low | High | Close | Source |
|---|---|---|---|---|---|
| 2026-08 | $289.05 | $289.05 | $290.82 | $290.56 | Secondary-market data provider |
| 2026-07 | $286.49 | $286.08 | $289.05 | $289.05 | Secondary-market data provider |
| 2026-06 | $293.11 | $285.41 | $293.18 | $286.76 | Secondary-market data provider |
| 2026-05 | $294.52 | $291.82 | $296.23 | $293.06 | Secondary-market data provider |
| 2026-04 | $292.07 | $290.06 | $296.91 | $294.52 | Secondary-market data provider |
| 2026-03 | $297.11 | $288.83 | $297.11 | $289.38 | Secondary-market data provider |
| 2026-02 | $299.98 | $295.80 | $299.98 | $297.11 | Secondary-market data provider |
| 2026-01 | $295.72 | $292.38 | $301.36 | $299.98 | Secondary-market data provider |
| 2025-12 | $293.11 | $292.30 | $296.66 | $295.72 | Secondary-market data provider |
| 2025-11 | $290.79 | $289.21 | $293.16 | $291.09 | Secondary-market data provider |
| 2025-10 | $295.07 | $290.69 | $295.82 | $290.79 | Secondary-market data provider |
| 2025-09 | $294.84 | $293.11 | $297.91 | $295.50 | Secondary-market data provider |
| 2025-08 | $287.02 | $287.02 | $294.74 | $293.41 | Secondary-market data provider |
| 2025-07 | $297.23 | $288.07 | $297.23 | $288.07 | Secondary-market data provider |
| 2025-06 | $285.38 | $285.38 | $294.97 | $294.97 | Secondary-market data provider |
| 2025-05 | $286.24 | $279.52 | $286.44 | $285.38 | Secondary-market data provider |
| 2025-04 | $271.51 | $271.51 | $288.83 | $286.24 | Secondary-market data provider |
| 2025-03 | $262.02 | $262.02 | $274.78 | $272.19 | Secondary-market data provider |
| 2025-02 | $265.52 | $262.02 | $267.69 | $262.02 | Secondary-market data provider |
| 2025-01 | $273.37 | $264.38 | $274.34 | $269.44 | Secondary-market data provider |
| 2024-12 | $277.92 | $273.37 | $278.42 | $273.37 | Secondary-market data provider |
| 2024-11 | $286.42 | $273.97 | $286.92 | $277.92 | Secondary-market data provider |
| 2024-10 | $291.71 | $283.31 | $291.71 | $286.34 | Secondary-market data provider |
| 2024-09 | $291.73 | $289.86 | $294.60 | $294.60 | Secondary-market data provider |
| 2024-08 | $283.89 | $283.89 | $293.73 | $291.73 | Secondary-market data provider |
| 2024-07 | $282.73 | $282.31 | $287.71 | $284.92 | Secondary-market data provider |
| 2024-06 | $285.55 | $281.18 | $286.76 | $281.68 | Secondary-market data provider |
| 2024-05 | $282.02 | $281.50 | $286.34 | $285.55 | Secondary-market data provider |
| 2024-04 | $284.47 | $279.76 | $285.94 | $282.02 | Secondary-market data provider |
| 2024-03 | $284.52 | $284.47 | $287.84 | $284.47 | Secondary-market data provider |
| 2024-02 | $284.55 | $281.89 | $286.36 | $284.86 | Secondary-market data provider |
| 2024-01 | $290.76 | $284.79 | $290.76 | $285.15 | Secondary-market data provider |
| 2023-12 | $286.15 | $283.05 | $292.44 | $290.76 | Secondary-market data provider |
| 2023-11 | $277.26 | $277.26 | $289.05 | $287.63 | Secondary-market data provider |
| 2023-10 | $278.76 | $275.47 | $279.76 | $279.42 | Secondary-market data provider |
| 2023-09 | $285.34 | $277.23 | $285.34 | $278.76 | Secondary-market data provider |
| 2023-08 | $288.65 | $284.26 | $289.94 | $285.97 | Secondary-market data provider |
| 2023-07 | $285.92 | $285.92 | $296.15 | $290.05 | Secondary-market data provider |
| 2023-06 | $278.05 | $277.68 | $291.86 | $285.92 | Secondary-market data provider |
| 2023-05 | $297.37 | $277.68 | $311.93 | $277.68 | Secondary-market data provider |
| 2023-04 | $320.45 | $296.67 | $321.22 | $297.37 | Secondary-market data provider |
| 2023-03 | $291.93 | $289.77 | $334.05 | $320.45 | Secondary-market data provider |
| 2023-02 | $336.62 | $300.10 | $339.53 | $301.95 | Secondary-market data provider |
| 2023-01 | $334.15 | $334.09 | $336.90 | $334.74 | Secondary-market data provider |
VALUE OUTLOOK
Growth and retirement
Total growthN/ACurrent sealed value vs MSRP
Annual growthN/A12-month close change
1-year forecast$273.63+2.5%
5-year forecast$300.41+12.6%
5-year range$292.00 – $309.00Collected estimate
Used value range$105.62 – $129.36Observed market range
MethodSource-provided projectionDisplayed as collected; BrickPriceWatch does not recalculate it.
Forecast sourceMarket data providerSource attached to the forecast fields.
Recorded history188 monthsCurrent history coverage on BrickPriceWatch.
ConfidenceNot independently scoredA range appears only when the source supplies bounds.
Forecasts are directional estimates, not guaranteed future prices or investment advice. Actual value depends on condition, demand, fees, and sale timing.
Released as an education Mindstorms model and now retired, Robo Technology Set with USB Transmitter (set 9786) is an RCX-era kit whose scarcity of sealed examples and historical significance sustain collector interest, and electronics aging and narrower demand cap upside and add volatility.
SET PRICE GUIDE
LEGO 9786-1 Robo Technology Set [USB Cable] price, value and history
LEGO 9786-1 Robo Technology Set [USB Cable] is a set released in 2003 in the RCX theme with 222 pieces. This BrickPriceWatch price guide combines a current new and sealed value of $266.86, an original retail price of $149.99, and 188 months of source-reported price history in USD.
The current comparison is based on collected market observations rather than a guaranteed selling price. The recorded used value is $107.80. The set is recorded as retired.
Current market dataa current new and sealed value of $266.86
Retail comparisonan original retail price of $149.99
Retailer availabilityno recent verified retailer quote; open the offer panel for the latest observed links.
How to use this LEGO price guide
Use the price guide to compare new and sealed value with the original retail price, inspect monthly high, low, and closing prices, and review current retailer offers before buying. Set condition, completeness, packaging, shipping, taxes, and marketplace timing can change the final price.
More from RCX
Ranked by shared subtheme, similar market value, build size, and release year.
RCX · 9785-1
Robo Technology Set (Serial Cable)
Similar build size
New$336.60
![LEGO 9793-1 ROBOLAB Team Challenge Set Version 2.5 [Serial Transmitter]](https://img.brickpricewatch.com/images/72a0ab430933ed41569f568541b3e776d469c36c680c704543cf19308320e39f.webp)
RCX · 9793-1
ROBOLAB Team Challenge Set Version 2.5 [Serial Transmitter]
Similar market value
New$221.60
RCX · 9790-1
ROBOLAB Team Challenge Set (Serial)
Similar market value
New$215.95