jamesd1343,
that's a new one!!! This is a pre-order deal.....they take your games then give a receipt which shows your credits and which game you are pre ordering. Unless, the game is already released, then they just do the trade on the spot.
Which brings up another point....I have 2 different receipts which show "$15 added to trade in value Reason: January New Release". That means that 2 of the games I traded in were only worth $5!! So if you are being told that they have to have a value of more than $5, they are full of shite!!! I can't vouch for games worth less than 5 though, as I have not traded one in yet.