I agree, it's totally not worth it money wise.

There is something nice having the absolute best tech out at the current moment though. Very nice.
When I got my 4870x2, there wasn't anything better out...it was fucking expensive, but I don't regret it. It was awesome.

Kepler sounds like this would be a worthy time to take such a stance imo.
It even made me think about switching from ATI...
Luckily my mobo supports both xfire and sli