Absolutely. I do a decent amount of my own grips, and I've put adapters on driver shafts. If I had a bender, I'd do my own loft and lie adjustments. It's not money so much as I enjoy fixing/building my own stuff.
I thought the same thing. The sheer volume of technology and willingness to do things that buck some normal trends or how irons look and function has me very interested, despite not really being in a position where I want to get new irons.