The great thing about a used game is someone else has already worked out all the bugs and made it better—at least, that’s what we assume this GameStop wants us to believe, since they’ve got the used version priced $5 more than the brand new one. That’s why the sticker is golden, see, to show that it’s more valuable.
According to our local GameStop (which we just called in a fit of hardcore investigative journalism), they won’t adjust the price at the register. You pay what’s on the price tag. So if the store runs out of new copies, you’re stuck paying the higher price for the used game.
(thanks to Keith!)