3DVagabond
Lifer
They sell the vast majority of GK110 as Tesla cards, for a much higher price. As they provide the volume, the only reason to sell them as gaming GPUs at all is to collect the money of the people who are willing to pay more for a GPU.
Actually, that's not the only reason. They have always sold the top chip to both the consumer and pro markets. The reason for charging $900 is supply and demand, should the rumors prove to be true, of course.