If you have the receipt and bought the standard edition you can return it for full price within a week of purchase. (I.E. a week ago) Otherwise, you can get $30 for the next two weeks or so, then it steadily declines until it`s worth pocket change.
ok im going to trade it in tomorrow at gamestop. get 30 dollars toward xbox one. and then sit on demos and free games with the ps3 till nov 1st when I trade in the system and then just wait till nov 22nd to get xbox one and 4 games all digital dl wowoowowowowow