L4D2 petition able to affect L4D2’s sales?

The Left 4 Dead 2 boycott has reached well over 20,000 members. But is this boycott really necessary? At first I too, was quite angry when they first announced Left 4 Dead 2. But after some time and recollecting. You have to look at the facts. New location, new features, and what every fan has wanted melee weapons!