There are 36 million Wiis in the US. 317K download sales is terrible. There are tons of games released on the NES and SNES they could add, but they have no interest in going after minimal returns. Heck, even Nintendo has admitted in interviews that the VC was less successful than they had hoped and that they have basically stopped support for it. Nintendo loves WiiWare because just like Microsoft and Sony, they can charge a percentage to third parties to sell stuff at zero risk to themselves.