It basically comes down to the fact that they are now at a more attainable price range perhaps to when 350's were new, so there are lots of people driving them now, who have no idea about the history, the lineage, or club or the marque. Probably goes for some 370 owners too, which brand new ones. They're just driving a car that goes well. They're the sort you go up to talk to and say oh, is this your Zed, and they look at you blankly. So don't worry too much, just wave at each one you see, and eventually they may get it.
Often get waves from other performance car owners, especially European ones, so some people understand.