picking stuff from bins is a far stretch from a full assembly line production. Latest generation arms are surely being developed but the are far from fitting affordability profiles for the average American factory. It sounds great when you are reading it but fabrication is not like picking stuff from bins. The colossal amount of programming for every human task that is performed in a factory that builds compressors would be a dauntingly expensive enterprise even without counting the physical robotic equipement that would be needed. Theory and practice don't always correlate.