I have just seen a 285 review, which is basically a 280 with more features and same price.
For what i have seen, the 285 beats the 760 on every front, including power draw, and the nvidia response was to lower the price about 30$.
I haven't bought nvidia for years, while they have great drivers and performance, power use and price hasn't been competitive.
I will keep looking to see if the prices change or a new board gets introduced by december. I am not happy the 285 is still a 2GB card, while my 22" monitor isn't even 1980p so it shouldn't matter much.