I think is interesting to apply this reasoning to entrepreneurship. When you are receiving no salary and possibly even investing your money on a company.
Seems one of the main advantages is higher density of conductors and connectors compared to a PCB. Aligning those dielets with micrometer precision would seem to require equipment out of reach for the hobbyist. And then bonding them, while they don't use solder but rather temperature and pressure, again with such small connectors I guess the line between bonding and destroying the thing is very very fine. Again requiring specialized and presumably expensive equipment.