Seems to me like most of the sku's are getting to be more of a market-segment specific sku's. I can see a lot of vendors using these in their appliances.
But for homelab use, while their power consumption numbers are generally very good at least for me I'm finding an extremely long ROI (6+yrs) vs buying used higher end E5's used that use more power. Right now DDR4 dimms carry a significant price premium over DDR3....once those prices equalize, I could see a sub-24month ROI.