Only if people buy them over standard cards too though.  Newbies and farms might but more well researched folks will probably avoid them.  As such I expect to see a very slow ramp up to production on them because the manufacturer's don't want a glut of inventory sitting on their hands, so they'll only push them out as much as they can forecast demand.  I think we'll see them boom, then taper to a niche segment and will probably continue to see some price pressure on standard GPUs.

There's little manufacturer's can do to truly dissuade people from using a standard GPU over a "mining" GPU, unless they start to hobble the "standard" cards in hardware against mining, which would (I'd think) cause a massive loss of reputation from the manufacturers.  Although knowing how corporate thought processes go, I could see that being a next step.

They obviously don't want to pay the increased RMA costs associated with mining stresses, but I'd think they also don't want to lose a massive customer base that's making them considerable profits.

I suspect rising difficulty and an eventual larger scale price correction will have more to do with sane pricing coming back over the impact these (for now) very limited power and quantity cards will have.