i was never mad at the fact that sc2 would be a trilogy considering nearly every rts game comes out with an expansion. There had to be a reason why blizzard cut sc2 into 3 pieces beside money. And dont say that people at blizzard are lazy. Making an rts game is pretty hard especially when trying to balance all 3 races. It takes months of testing with progamers and see how balanced it is. Last i heard Zerg was the imba race that needed a nerf on the infestors.