Of course it will be. At least with 3rd party cooling. Comparing one of the best 980ti with a good over clock vs a stock 1080 and default cooling is fairly pointless. A lot of people buy these blower cards for sli or to go custom cooled anyway. You have to pity the people buying these intending to keep them stock before waiting for better models to come out.
Quite. However I imagine 1080Ti classified will be an eye watering price.
I'll wait to see 1080 evga (non Ti) overclocked benchmark results.
It all come down to price to performance ratio for me in the end. I paid £400 for my new sealed 980Ti classy and sold my 780Ti for £250. I think it was worth the upgrade for £150. Would I buy a 1080 for £600 thats similar performance to my £400 980, no I wouldnt. Would I buy a 1080Ti for £400 and sell my 980Ti - Yes