[This is adapted from my blog post.]
I first built a PC in early 2015, which still ran just fine, and played most of my games at 1440p, high settings. But I remember the process of building a PC to be really fun, and I wanted to go through it again.
I was a lot more patient with the research, part selection and shipping times this time around because I already had a working gaming PC. I wanted to go with a distinct color scheme because Reddit karma. I figured I'd go with white and red.
Turns out it's very easy to find parts for black and red builds. White and red, not very much. There are barely any cases or motherboards that come with that color scheme out of the box, especially mATX, which was a must for me. I planned the build as a mostly-white build, with hopefully enough red accents that I'd be able to call it white and red. The trick was to buy custom PSU cables and red RAM sticks.
The part-hunting and build process after restricting myself to a hard-mode color scheme was very satisfying. I think it worked out well!