Selling back to gamestop?

Usually less than half of their current retail price. I'd agree with Edwin E, considering Super Paper Mario is $50 retail, Gamestop would have it used for 40-45, you'll probably get 15-20 for it. Boogie is 29.82 at Wal-mart (no listing on Target or Gamestop for it) so I'd guess you'd get around 10-13 for it.