I still dont buy this whole, "They can charge what they like and people will pay it" idea. I really doubt Titan X at £1000 sold all that much. Or maybe there was such limited stock that didn't matter anyways and it was largely just a brand boosting product more than anything. When I see people talking about what the 'high end' card to buy is, usually the talk is about the GTX1080.
Also, it's still somewhat early in the new node's lifetime. Would probably be too expensive to release binned GP102's at any kind of an acceptable price point.
They are already doing it with the gp104 1080, it's priced beyond it's true value yet it still sells. No different for those who just buy the titan pascal because it's the fastest card, never the mind it's not a full chip, they don't care ask IT'S A TITAN.