i would say that the 9 out of 10 harley riders wave, they dont see it's not a harley.

the tenth he's just to busy adjusting the radio, taking a drink from the cup holder.
honestly here in moses lake most do wave. some just wait till their waved at.
also it has to do with what helmet i'm wearing. i've got a wild colored sport bike helmet. a black full face, and a silver open face.
more sportbikes wave with the wild helmet. curzers wave at the open face. i get the least amount of waves with the full face. could be i use it in cold wx or mostly at night when why wave when they cant see you. 8)
i'll have to rethink that black paint job. the lovely lady likes the purple.
here's a quick story. i went to a harley shop to buy some steel endcaps to replace the crappy plastic chromed ones. the guy asked "what model" you putting it on. i told him some 1 inch bars on my savage. first he tried to tell me that the bike couldn't have one inch bars, then went with "they only fit the specific harley bars" and when they dont fit i wont be able to bring them back. I say, you gonna take my cash or not.
grudingly he did. needless to say, once i took the plastic insert out of them they worked quite well with a bit of jb weld holding them on.
i think in a nutshell, people buy what the see sold on the boob tube and what everbody else has

this way they won't make the "mistake" of buying something nobody else rides.