amd 6950s for a gtx 680?

So i'm kicking around the idea of selling my 6950s in crossfire and picking up a gtx 680. Haven't been overly happy with amd's crossfire support and just general driver support. Also, thinking about watercooling my system, would be a lot easier with just one graphics card. However, it comes down to the difference in price from what i could sell the cards for, compared to the price of a new 680...worth it or a waste of time and money? Thoughts?

Keep the 6950s IMO and wait for the next big thing to come out.