In the early days of avionics retrofitting, guys like Harley Bennett were (affectionately, he says) called junkies. Now theyre referred to as legacy avionics specialists. Bennett fell into a nearly 50-year career buying and selling used avionics after equipping his flying club airplanes for IFR using more affordable used avionics. It was the used avionics listings in the publication Trade-A-Plane, plus a demand from avionics shops, that made him realize he could make a living in a business that does nothing but sell used avionics. Bennett has no interest in competing with avionics shops, so his company doesnt sell new avionics and it doesnt do installations.