Around $20.
It depend if it is gamestop they will give 30 % of regular price
up to 20$
i heard around 60 bucks
45$
If your talking trade ins they are not that good at about $4.00
If you trade in a game for another game you normally have to pay them some.
As of Dec 2011, older model 15 trade in ,slim 25 Trade in.
$400-@550 depending if old or new
50 dollars to sell or to trade with a game .... get a 50 $ game
If you trade it with GameStop, they may offer you approximately 5 dollars for it. Correction: They might give $7 - $10 for it...
Only $20 in trade