The Xeon CPU I linked is actually cheaper than the Ryzen CPUs here where I am, with the exception for the R7 1700. Even then, it isn't that much cheaper. Some of the motherboards (high end ones) are almost as costly as the C612 motherboard I want to get. L33t pr0 gaming RGB motherboards, that is.
32GB registered DDR4 2133 ECC RAM for 350 bucks. That's less costly than what my 32GBs of DDR3 1866 cost when it was at its cheapest. Seriously. Plus, registered ECC is only .75% slower on average than ECC/non-ECC memory.
If the ES CPU works out well, then the amount of power from the system would beat anything within the respective price range. I can sell my previous components for a nice sum of 500 bucks too.
If the architecture and our concept does take off, then this system will be better in the long run than a Ryzen, I feel. Having the ability to scale up to 22 cores is a bonus for render times when it does get more serious. When Broadwell-E/P is at the end of its life, those chips will be cheap!
Edit: I also found many pages back in this thread that B0 Broadwell Xeon ES CPUS are ES2/QS stage, so compatibility and stability is as that of a retail chip. That sealed the deal for me. I have someone I can test the CPU with as well to confirm.