I was fed up with COD Black Ops on PS3 after just few hours of playing (if you have PS3 version you probably know about all the issues). I didn’t want to wait for the patches from Treyarch and traded in the game in CEX.
I went back home and found Tesco’s launch offer for Black Ops. They sell it for £25 when bought with £20 PSN card (you pay £45 for both). At the moment CEX buys COD BO for £33. Trade it in and you’ll have £20 PSN credit for £12.
Be quick. Tesco may finish launch offer and more than likely CEX will soon reduce their trade-in price because many people are disappointed with the newest COD.
Edit: you can do similar thing with Xbox live points