Are you single?
I mean it is important to discuss performance/price even if you have all the money in the world so there are improvements in that regard and they dont get "lazy" in terms of innovation/products like happened with intel this years and they started to skyrocket prices. Voting with the wallet matters.
The common price/performance metric we often see discussed is a little pointless from a larger perspective though, instead the performance/watt is much more interesting... That would have to be full system usage though and not just the CPU isolated... (Skylake-X is not a shining example in that department either as far as I can tell though)...
The overall problem is that a true price/performance evaluation becomes very abstract very quickly if you have to consider all factors and I don't see anyone in the HEDT space really bothering with that, so then we are back at a rather meaningless comparison only based on the CPU cost it self.
Personally, given the total price of the pieces I bought, the CPU cost only amounted to about 28%, so saving on the CPU wouldn't really be that visible on the total...
In hindsight Threadripper might perhaps show to have been a better compromise given the reasons I had to go X299 (still somewhat speculations)... The biggest thing is the 180w TDP, the 140 on the i9 was already a really hard pill to swallow, but rated TDP doesn't necessarily map to actual results, so we still have to see... The 1TB of DRAM though, OMG... >.<...