I just realized that I have a problem, where I think "why would I pay $50 for a PCB that I can design and make myself?" and then conclude "therefore nobody would pay". Maybe I should start selling some of the PCBs I made.
I would say that knowing how to design boards makes me MORE willing to buy other people's boards. Coming from a more mechanical background, I don't look forward to the tedium of reviewing and modifying all the footprints of "standard" sized SMD parts.
I like making music effects for friends, and branching out to things related to motor control, LEDs, sensors, etc. I prefer to have them pick and placed for me. Since an injury a few years ago, I battle vertigo when doing extended fine detail work.
I would be interested in seeing some of the designs, you've always been an interesting person to read from here on HN. Tindie makes that easy.