The asking price isn't the market price
Learn what a listing tells you, how to identify a useful comparable sale, and when the evidence is too thin to support a price.
Read the researchTHE RESEARCH LIBRARY
Research for your next decision.
Card comparisons, collecting context, and practical explanations of prices, demand, and selling costs.
PSA 9 or PSA 10: what are you paying for?
A framework for examining the price premium between grades without assuming that the higher grade is the better purchase.
Read the researchYour card went up. Did you make money?
A simple way to distinguish a higher sale price from profit after buying and selling costs.
Read the researchExplore the existing archive.
Earlier articles and market notes retain their original dates. Treat time-sensitive observations as historical context.