Oh, sorry. Guess you are referring to L4D2? But just think of all the wonderful times you will have with me and the O'fives killing zombies together?
I have quite a pile myself. I'd have a hard time passing up a good deal, then if I didn't like it as much as I thought I would, I'd hold on and try to force myself to get into it, I spent my money on it after all, no sense wasting it. Then finally I got over that attitude and decided just to forget about them or give them away if they were not doing it for me. So now I have Assassin's Creed, Perfect Dark Zero, Halo Wars, GTA IV, F.E.A.R., and probably one or two others sitting on my shelf with no intention of giving any of them any love. Maybe they will come in handy when the zombie outbreak comes and I will need something to do while barricaded safely away in my well fortified home. Or maybe I can find someone to give them away to sometime who will appreciate them more than me. Already gave away Turok, Mirror's Edge, Bioshock, and Fallout 3 this year. Feels good to cut down on the clutter and return to my minimalist roots.