This is essentially the reason why the GTX 690 is the tell tale card here for gauging it's 'value'.
I said what I said as single GPU cards in mind ofc, and iirc the 690 was also 1K$ when it came out, so it was not cheaper than two 680s at that time. Don't forget that this is a 384bit Kepler, so it might hold well at ultra-high resolutions (we don't know for sure if it's slower), but being a single chip design is always a plus imho, so let's not jump into conclusions without seeing how Wizzard tests "her" capabilities.
I have to admit, I'm also not really a dual-card/SLI/Xfire fan, but I still find it fascinating and promising that - with such power consumption - there is a possibility of a dual GK110 card in the near future (to hold the candle until next generation arrives).
Events like these will probably also force AMD to move soon, which can lead to a - much needed - price war perhaps