As GameStop tries to buy eBay with $56 billion of fictional money , it’s also putting a lot of effort into pump its own profits by price-gouging customers on collectibles like trading cards . Today, the retailer came up with a brand new way to do that: selling single, randomized, PSA-graded Pokémon cards for $5,000 a pop. This unhinged behavior went live on GameStop’s website today as part of its “Power Packs” program. Power Packs have been live for several months now as part of a collaboration with card-grading site PSA, allowing customers to spend a flat amount of money to “rip” a digital card pack that has a single PSA-graded sports or Pokémon card in it. Once you see what the card is online, you can either choose to have it shipped to you, sell it using GameStop’s platform and give GameStop a cut of the money, or, for whatever reason, have it stored for you in a climate-controlled secure facility in Delaware until you want it.…