Plenty of people have the resources to set up a workshop, but they don't bother. We should celebrate these weirdos (positively valenced) who make the world a little better.

If you work a good 9-5 you've got several hours each day to tinker. Also, nothing in that video was 100k+. A nice watchmaker's lathe is ~10k. A full CNC enabled Bridgeport mill is 12k. That shop could be assembled with care for ~20k, or carelessly for ~50k. It's not nothing, but it's less than a boat. It's less than a country club membership. It's less than a few trips to Disney World.