I think the price does not really count, as said before,
the ethusiasts will buy them if there is support in the games,
that was always the case in the history of this industry, with cpus,
gpus and many other things, which are standard at today.

A problem with the gpu solution could be that ATI and nVidia will design
their own device, and if, we have two to choose from, so developers
have the double work to do for supporting them.
So the support via gpu is not allways a + for this problem in my opinion.

old_bill