I read the article a few minutes ago, really love the idea.
There are MBs being made for mining alone, why not focus some GPUs as well?
As a miner I love the idea, but I gotta say I am worried about how much that 'premium' will be, the value of the card itself, and those 2~3 extra mh/s will have to cover the premium and than some.
Don't forget that those cards will be much harder to resell after you are done with them.