ThinkPad Price Tracker estimates used ThinkPad prices by analyzing recent eBay listings and grouping them by model.
The site uses recent eBay listing data as the source for pricing. Listings may include variation in condition, configuration, shipping, and seller quality.
Listing titles and available specifications are processed to identify the most likely ThinkPad model and normalize common variations in naming.
Some listings may still be imperfectly classified, especially when sellers use incomplete, inconsistent, or incorrect titles.
For each model, the site calculates price statistics such as recent low, average, and high prices from tracked listings.
These values are intended as rough market indicators, not exact valuations.
A listing may be marked as a strong deal when its price is significantly below the recent average for that model.
This is only a price-based estimate. A listing may appear cheap because of: