Can one ever be "done" in this hobby?

I live in the "twilight zone of zero self control" (Walter Becker line) and in my decently funded retirement I enjoy my self indulgent audio, guitars, a Triumph air cooled motorcycle, sporty German cars, mechanical watches, longboards, SUP boards, an adult long skateboard (Dewey Weber) and whatever else I feel like doing and absolutely care zero about what anybody else thinks about any of it. However, I do crave attention, so there's that.

“I live in the Twilight Zone.”

I can vouch for that. 😳

I get satisfaction from accomplisment. I actually take offense to you telling me to get a new hobby. I did not say I did not enjoy it. I merely pointed out that humans become desensitized to almost anything when repeated enough. . Why did you do renovations to your system? I am guessing because you tired of it and wanted something better. Which proves my point. Change is the spice of life. 

Nice attitude on your retirement. It is how I live my semi retired life (by choice) as well. Gotta keep it new and get the thrills.