I haven't pre-ordered it, but I definitely will buy it. I have not to date been disappointed with anything that Valve has created and as it stands, is my favorite company as far as game designers. Valve simply does so many things right that the waiting time between games can be forgiven. Most of the time, I'm regularly playing a valve multiplayer game (CS:S, TF2, DOD:S) or playing through a single player game of theirs a umpteenth time.