How much would you pay for an Oreo cookie? For some, the answer could be thousands of dollars — as one hard-to-find Oreo cookie featuring a rare Pokémon is fetching a hefty price tag on eBay.How much would you pay for an Oreo cookie? For some, the answer could be thousands of dollars — as one hard-to-find Oreo cookie featuring a rare Pokémon is fetching a hefty price tag on eBay.