In case you have missed it, the studio that brought you Okami and Viewtiful Joe is gone. The reason seems to be sales, basically. Although the article implies the conclusion that a creative game means a game that does not sell well, I'm not convinced that is true in general. After all, there are independent film makers, right? Aren't they able to make a living? There are tv shows such as battlestar galactica or deadwood which are good, and yet remain on the air.
So I don't buy the explanation that something creative and good necessarily does not sell.