Time to fess up...
When I was in my teens I was seriously into high-end audio systems. I couldn't afford a Linn Sondek turntable but I got the next best thing, a Rega Planar 3. Belt driven, glass platter, all black, all manual (just a power switch). I loved it.
I built my own amps and preamps. The only controls on the preamp were source selector and volume.
I built my own speaker enclosures using software I wrote myself to calculate box volume and port specifications from the Thiele/Small parameters.
There were people I knew that tried to sell me fancy cables and things all those years ago, but even as a gullible and naive 16 year old I didn't fall for it. Maybe I was sceptical because I had a much greater understanding of what really makes a difference to the quality of sound reproduction.
Nothing beats learning enough about the theory (Thiele/Small, etc), and the engineering (slew rate limiting, negative feedback, long-tailed differential pairs, etc etc) to know that the stupid volume knob is not worth fussing over.