I got this idea by wanting to create an iPhone game, but I don't have thousands of dollars on to spend on a graphic designer nor the creative skills to draw characters. The marketplace would make it easier for people to create games.

I think there could be, if the price was right, my initial instinct is that $7 per image is pretty steep.

Uniqueness also may become a factor. Who wants to have games that look exactly the same as everyone else's?

There are also similar sites for 3D assets, such as turbosquid, which is more of a marketplace type idea.