Well, I've got parts (except for more RAM, darn DDR4 prices...) to build a pair of Socket 1151 (SKL/KBL) rigs.
Built one today, decided to throw in a G3900 SKL Celeron, it's OK, not the greatest performer, but barely adequate for web browsing and listing to music. (Ok, it's probably better than that, but 6C/12T CPUs have spoiled me a bit.)
I was planning on throwing in one of my G4560 KBL Pentium CPUs, for the better performance and better online video decoding.
I wasn't sure if the H110 boards needed a BIOS update, though, so I put in the SKL CPU first. Turns out, they have the next-to-newest BIOS already, so I guess I could have dropped in the G4560.
Could stand for more than just 1x4GB DDR4-2133. Would like to get 2x4GB DDR4-2400, but that's like $83-85, for the cheapest GSkill and Geil value RAM on Newegg.
Sigh. That's 25% of the build cost, maybe 30%. The other big cost was the 240GB SSD, for $75. (It was a Sandisk, and wasn't especially on sale.)
I've got two friends that could use PCs right now, one with a dead PC, and one with an older Athlon II X4 that I keep trying to get him to upgrade, but he probably won't until it dies.