Depends on the game.
Super Meat boy sells because of its difficulty. Where as if some kid were to play Sponge Bob and get a challange, it wouldnt be that good for them.
Sign up for Tribes:Ascend, its free
FOR THE NEWBIES:
Blue names=normal member
Grey names=community mod(As in, NOT a Telltale employee, they just keep the peace here, that's it.)
Red names=actual telltale employees.