Interesting discussion thread. I am also an old-head from an overclock perspective at 35. My first graphics card was a Ti-4200, which you could amp up to match the high end Ti-4600. I even soldered on a potentiometer so I could increase the core voltage. That kind of stuff was fun and rewarding, but these days everything comes out of the box already binned to death and cranked to within a few percent of max stability. It's largely that the industry has matured and figured out how to squeeze the most money through careful product tiers, marketing, and glitz (RGB and such).
On a positive note, Linux and other freeware is pretty wicked good these days compared to back then. If you want to hack around with stuff you now have Raspberry pi's and cheap 3D printers.