back in the 70's, i worked for this little company called Flow Technology, Inc
we made flow meters, flow meter calibrators, and associated electronics
this guy name Mo Taylor used to do some of our PCB assembly out of house
he started in his garage, i think - a few assemblers working for him
back then, of course, all the components were through-hole
over time, it turned into a pretty good business
as far as i know - he's still going - MoTay Electronics
guy made millions doing that