that's how I got one for a friend of mine's birthday, the extra pack or whatever, just without the box, but everything in a big bag, and she was so pleased it didnt cost 200 bucks, usually people are pissed by the trade in value, and some of them want cash which is less, and some gamestops dont even give cash for their systems.
EDIT: the guy didnt even care either, he just said, well go outside or off the camera view and do it, haha.