Just got an unused copy of this brilliant game from the Birmingham branch for £20! Infact i ended up getting it for nothing as i was there to trade in some of my old games. Basically Metro 2033 is one of those games that can't be traded in secondhand as the code can only be used once (Steam activation). Therefore as far as i know CEX only accept brand new sealed copies. The Birmingham branch had at least 3 other sealed copies but they were all in the display case meaning you have to ask the staff to get you a copy. Not sure if I'd risk ordering online though. Much rather go to a store myself so i know for certain its new.