I think it's regional as well. In places with short seasons where I've lived, Boston, NYC, Seattle, people tend to wave more openly. In other places, Phoenix and ABQ, Harley riders almost never wave to anyone other than Harley riders. Almost all are B-types. Some of the real A types will wave. At a show that was mostly B Harley types, I rode in on my CB160 and the folks who came around to check it out were the A types, including some older Hells Angels dudes, many of whom had stories about their first bikes in the '60s that were Hondas. The 160 won best Jap bike for the show, too. But far and away the vast majority of Harley guys in Phoenix are lawyer and dentist wannabes and kids who think they are bad ass.