It works. Arduino, Makerbot, DIYDrones and a couple of others had 1M+ yearly revenues in 2010, they probably have all grown since then. Open source hardware is

It works. Arduino, Makerbot, DIYDrones and a couple of others had 1M+ yearly revenues in 2010, they probably have all grown since then. Open source hardware is probably easier to commercialize than software, because it still has to be manufactured by someone.