False: Spore sucks.
I don't know why you would make games for OS X... seems like a LOT of effort to make a game that runs just fine on the system if people would just reboot.
Apple still makes money even if I don't use OS X for gaming--as long as I use apple hardware.
Therefore, they shouldn't charge us crazy-markups on video cards.
Because most people don't want to pay for Windows, and honestly most of Apple's customers are too stupid to figure out how to set up Boot Camp anyway.
That having been said, I can't see why people buy the Mac versions of games if they DO have Windows, since the Mac versions almost invariably run poorer.