"There are those that will see conspiracy and disgust in the rotation of the earth simply because its too popular with the mainstream". (@realjenius)
Apart from that, I bought Left 4 Dead 2 after more than 100 hours on Left 4 Dead. I only finished the first campaign yet (with friends, of course), but I must say that this game is a masterpiece!!
What are you waiting for? Buy this game on PC NOW!!!
And don't forget to check the Mignight Riders website from time to time. It seems that we will see them soon ;)