Great deal. I bought it for $40 on day one...I still haven't played through it all though...I get a little frustrated with it I guess. I don't have the patience to sit through whole games for some reason unless it's knockout crazy awesome, and I have already seen and played through 75% of Bioshock on the 360, including any twists and the ending.
It's a pretty sweet game and you shouldn't pass up $15 though.
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )