I would gladly buy a Vega to replace my 980ti's if it was cheaper and as fast or faster than a 1080ti. AMD drivers have come on leaps and bounds the past 12months and are night and day since I was burnted by their drivers with my old 5850xfire setup.
What you are saying is very different to what I was saying.
I never said 1080 TI, but current 1080 owners wont switch to a 1080+10%.
If you have an older card then the AMd offering may be more interesting, and that is why nvidia will price accordingly. IF Vegas requires HBM2 then NVidia have a lot fo wiggle room in prices, and since they have already made lots of profit can reduce their profit share further than AMD wish willing to. not that I believe Nvidia will have to, performance and market recognition will be enough to ensure nvidia's sales are healthy.
What if Vega turns out to be like FuryX, and Nvidia release a 1080ti that is both cheaper and faster?