.... Eh? How is this "AMD raising prices"?
The 3990X cost 33% more than the W-3175X MSRP (lol, msrp), but unlike LGA3647, they have more than 500 motherboards world wide, and those motherboards do not cost $1000 each. The actual platform cost of a 3990X vs a W-3175X is about equal, maybe off by 20% at most.
This platform as a whole has better pricing relative to it's only "competition" than the 1950X did.
And yea, it is AMD flexing. As they should, they deserve it and so does intel. I have no idea who would ever use this chip, but I can sure think of some people I'd like to see get their hands on one.