Because they've explicitly stated on NUMEROUS occasions that the deal with Marvel was for one game. They were all adamant about "THIS IS THE COMPLETE GAME!"
My roommate just got us joysticks for MVC3. First match I play online some guy spams the shit out of Dr. Doom, Arthur, and Dormammu. I'm still not used to joysticks, so I couldn't do anything
Edit: I'm about to fight someone who's Ranked #1 in MVC3. Jeeeeesus.
I agree, but what sucks is my b button is hard for my finger to reach, so I have to twist my hand at a weird angle. So, I kinda have some difficulty with that. But I still enjoy it a bit more