This is a never-ending project, and I like it that way.

I started building pcs when I bought my first build-yourself for my birthday two years ago (i5-6500, z170, gtx 1060 6gb)
I started upgrading everything the following year, from a 6500 to a 7700k with a bios flash
New gpu and a psu (I was paranoid about the VS650 I previously had), new motherboard, new case, NZXT Hue to give it a flair

Then I discovered watercooling which I had viewed as a meme (still is) and it sparked an entirely new hobby for me.
My wallet doesn't thank me, but I love being able to tweak and customize my system as much as I'm able to now