yes
online yes, in stores no
Gamestop locations do sell used Nintendo Game Cubes.
You can't. You must go in to your local Gamestop in order to sell your game.
no
Well, a Gamestop might have one and there is always ebay.
Yes.
yes
You just go to the store and say I want to sell my game (like i did in gamestop)
Unfortunately, GameStop does not sell game cases. You can find game cases on eBay.
Wallmart target gamestop
10-15 $
Yes they need the case
yes it could