FD or trade: COD4 PS3 - New
 

I bought this game by accident thinking it was the new one. Turnd out it is COD4 Modern Warfare which I already have. As I don't need two copies, this one is available for sale or trade. It is virtually brand new. I foolishly unwrapped it and stuck it in my PS3 to see that it is the same as what I already have. Sadly as I removed the wrapper, I can't return it, so I'd like to trade it for something or sell it for lets say $45.