I find it's the ones who're "rabidly" identified w/ a more limited group, like the model T guys, who won't wave back - it's a "tribal mentality" for all of us, and some tribes are too exclusive, rather than inclusive - billet hot rod drivers who only come out on sunny days to gather some bling at a show seem to think they're waaay above wavin at a 50 year old truck
Bill
