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Data-Driven Card Collecting
Data analysis that reveals new insights about the hobby we love. Hidden opportunities for safe sports card investing and dealing. Insight - free of hype - that takes the long view of building and growing your collection in a sustainable way.
Garbage Pail Kids Sapphire Complete Set Price Tracker
This graph shows the eBay sale price for complete sets of 2020 Topps Garbage Pail Kids Sapphire (166 cards in total).
Garbage Pail Kids Sapphire Star Cards Price Tracker
These graphs show the eBay sale price for the four “star” cards in the 2020 Topps Garbage Pail Kids Sapphire set:
8a - ADAM Bomb
8b - Blasted BILLY
1a - Nasty NICK
1b - Evil EDDIE
Garbage Pail Kids Sapphire Price Tracker
History of all base and parallel GPK Sapphire cards sold on eBay. Charts of price movement for "star cards" (Adam Bomb, Nasty Nick, etc...), Character index which shows the most and least valuable characters, and more.
Discover your hidden gems
Card Lens is a phone app that uses Artificial Intelligence / Machine Learning to scan a collection of sports cards, identifies the most valuable cards, and tells you how much each is worth.