Good point. If people make money by selling games, that's awesome.
But personally, I don't respect this kind of game. There are a lot more interesting games to be made for the platform.
That's probably why I posted a dig. I like clean arcade games like iilwy, stories with depth (e.g. oblivion), and things that get me excited like zombies and FPS. For me, most social games on facebook are a whole world of "who gives a fuck?". No offense.
Let me stress that they are fine businesses, just not my kind of game.