i dont think it'll be that high when the 6870 released at 350.00 im expecting around 600 so unless nVidia lowers the price of the 580 its gonna be ATI ftw AGAIN
I assume you meant HD 6970's at $350.00.
When the 5850's came out, they were around $279, then they kept going up until they cost nearly $310. The HD 5970 2GB started at around $600 when those prices started creeping up. If AMD does the same thing, you could see the HD 6950's going from $300 to $330 and the HD 6970 going from $350 to $380, and the HD 6990 starting at around the $700. It would be awesome if they could get the prices down to $600, which was what the HD 5970 2GB cost when it first came out. If that's the case, the GTX 580 would definitely need to drop it's prices down to the $425's, with the dual gf110's being around $900 (still too expensive).
The GTX 295 came out at a $500 price tag. I don't think anyone expects to pay $1,000 for a single graphics card. What it will really boil down to is the performance and cost of the HD 6990.