I'd advise no one to build a gaming PC right now, maybe never again. Get a switch or PS4 (or both) and be happy. I picked up a PS4 slim this x-mas season instead of trying to begin to piece together a complete system overhaul.
Intergrated GPUs are better than ever and the sheer number of high quality, non resource intensive games is also more than ever before. PC gaming doesn't require a GPU that takes 2 8 pin PCIe power anymore.
The major issue is this, I'm seeing GTX 1050ti's going for $180+ online and in microcenter, before shipping. That's the fat lady singing on affordability in the PC gaming market. It was only a few short years ago that a GTX750 ti could be found for $110.