I don't know if I would bother building a Ivy Bridge system in late 2017 unless I gotten the board, CPU, and memory fairly cheap, for free, or already had them. I would also feel really strange putting a rig together with main components that's 5 y/o.Depends if you can find cheap mobo. I5 ivybridge is cheap second hand and ddr3 ram is way cheaper than ddr4 second hand. But its alot harder to find mobos. Most secondhand seem to be coming from china now.