As an EE, there's a healthy amount of this in some industries with very high costs, equipment use beyond manufacturer obsolescence, and in hobby circles with te

As an EE, there's a healthy amount of this in some industries with very high costs, equipment use beyond manufacturer obsolescence, and in hobby circles with technical enthusiasts. But not generic devices for the general population. At my day job, we've replaced and re-engineered controllers in industrial laser cutters, CNCs, welders, robots, and similar equipment. There are replacement control boards for hobbyist stuff like pinball machines, motorcycles, retro computers, and retro game consoles. But as evidenced by the fact that people are buying shitty cloud-only IoT devices, neither the interest nor the capacity to do this is common.