About BrickPriceWatch
BrickPriceWatch, also written as Brick Price Watch, is a LEGO set catalog and price research service for buyers and collectors. It brings catalog facts, source-labeled market history, and recently observed retailer offers into one searchable place.
Data sources
Different sources answer different questions. BrickPriceWatch stores them separately and does not present a retailer quote as a completed sale or a market estimate as a guaranteed price.
| Source | What BrickPriceWatch collects | How it is used |
|---|---|---|
| Catalog export | Set number, name, release year, theme, piece count, and primary image | Core catalog, search, Theme, Subtheme, and Year pages |
| Market data provider | Market values, monthly history, retirement data, source forecasts, product facts, images, identifiers, minifigures, and retailer links when available | Price guides, history charts, outlook, set facts, and market lists |
| Amazon and eBay | Matching product links, observed price, availability, seller or marketplace context when available | Current offer comparison and outbound shopping links |
| Walmart | Matching direct-retail product, observed price, list price, and stock state when available | Current offer comparison and deal detection |
Update frequency
Each data source follows its own crawl schedule and batch size. Catalog records update when a newer catalog export is imported, while market pages and listing feeds follow their source-specific schedules.
Retailer offers remain current only until their recorded expiration. Marketplace listings use the source-provided end time when available; listings without one expire after the configured limit. Each displayed quote carries its observation date. Prices, shipping, taxes, condition, and availability can change after observation, so the retailer page is the final source before purchase.
Corrections
If a set number, product match, price, image, or attribution appears incorrect, use the Contact page and include the set number, the page URL, the field in question, and a supporting source. Corrections are checked against the cited source before the stored record or matching rule is changed.
The public correction email will appear on the Contact page when the production address is configured.
Ownership and independence
BrickPriceWatch is independently operated and is not affiliated with or owned by the LEGO Group or any retailer or data provider mentioned on this site. Those companies do not review or approve BrickPriceWatch pages.
LEGO is a trademark of the LEGO Group, which does not sponsor, authorize, or endorse this site. Market values and forecasts are informational estimates, not guarantees of a future sale price or investment advice. Some retailer links may earn BrickPriceWatch a commission; see the Affiliate Disclosure.
Frequently asked questions
How does BrickPriceWatch get its LEGO set prices?
Market values come from publicly available market estimates. Current retailer offers come from retailer feeds and product matching. Each price carries a source label and observation timestamp so you can check when it was last seen.
How often are LEGO set prices updated on this site?
Each source uses its own crawl schedule. Retailer offers remain current until their recorded expiration, and catalog records update when a new catalog export is published.
What is the difference between market value and retailer price?
Market value is an estimate of what a new, sealed set may be worth based on market data. A retailer price is what a specific seller is currently asking. BrickPriceWatch keeps them separate — a retailer quote is never presented as a confirmed sale price or guaranteed market value.
Does BrickPriceWatch show retiring LEGO sets?
Yes. The Retiring Soon page lists sets with upcoming recorded retirement windows. Each retiring set shows its current new value, used value, original retail price, and available price history so you can review market data before a set leaves retail.
Can I track specific LEGO sets I am interested in?
You can add any set to your Watchlist directly from its detail page. The Watchlist saves your selected sets locally in your browser so you can quickly return to compare their current values and offers.
Where does the set catalog come from?
The set catalog — names, numbers, release years, themes, piece counts, and images — comes from a publicly published catalog export. BrickPriceWatch checks for catalog updates daily and refreshes its records when a new version is published.