Shockingly, GameStop's Graded Card Program Will Buy PSA Cards for Their Market Value! All The Details! PokeBeach PokBeach GameStop recently honored a trade in worth $30,000 after accepting a 2003 Pokemon card from a customer. It was the most valuable GameStop trade in ever, according to the retailer. Click the link in ACE 10 CERTIFIED GEM MINT 2015 BREAKTHROUGH M MEWTWO EX HOLO POKEMON CARD or 1250 Rev Comps Mega Dream ex Japanese 237 193 Team Rocket's Mewtwo ex Special Art Rare Went to try out the new grading service at GameStop today : r PokemonTCG GameStop will buy and sell rare Pokmon cards but it doesn't want to catch 'em all The Verge