Worth noting that a lot of niche industries only work today because we have better automation to support oddball things that aren't truly "mass produced." More

Worth noting that a lot of niche industries only work today because we have better automation to support oddball things that aren't truly "mass produced." More and better automation will enable even more of these segments to exist. Mechanical keyboards are a good example. There's a wide variety of plates, cases, and circuit boards available today that would be infeasible to make by hand, and were not cost effective to make just a few years ago. But here we are today with an appreciable hobby and market that wouldn't exist if not for improvements in manufacturing efficiency.