Graded Pokmon Cards GameStop Mega Camerupt Ex 156 is not worth grading. PSA 10 averages $48 on eBay, which equals 77% profit. Profit loss calculation is based on the lowest grading tier of $24.99. Prices are from What is the cost to grade a sports card with PSA? Heres our experience with sending 55 cards to PSA! We normally grade with GameStop but decided to try out PSA direct and overall very happy with the grades we got 43 55 10s. This did take about a Card Grading Service GameStop My first GameStop grades arrived back, a lot of 86 cards graded : r PokeInvesting