Today hacked2123 let us know of a coupon (below, click to enlarge and print) that allows you to get 25% OFF used PS3 games from Gamestop/EB Games.Sponsored Links
To quote: Just click "View Image" and print. Valid 4/11-4/17
Valid on up to 2 games, Limit 1 Per customer.
That means you can pick up games like COD3 for far less than $25! :)
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