Bhawk - what you just described is something that only happens about two billion times a day .. an insulated, self-absorbed bunch of assholes treated you like dirt. That they were pilots is unfortunate, but people are people, even pilots.
I know that I have been treated great by nearly all the people I've ever met at GA gatherings. I think that's the standard.
I've done a lot of boating in years past, when I lived in Florida and also did some development work in the Bahamas. Lots of really nice people are boaters. But lots of them are assholes too. One big difference between boaters and flyers: in general, boaters are really into the social stratification thing. Big boat people only hang out with other big boat people ... and preferably, with bigger-boat people. You own an 80-foot boat, and the guy who ties up beside you at the marina only has a 60-foot boat, and you treat him like a wetback just crossed the border with a load of drugs. That's the way it is with a lot of boaters.
Pilots, on the other hand, almost invariably when I fly into a GA airport and walk into the FBO, chances are the other people in there fly everything from a 60-year old J3 or Stinson or whatever all the way up to a G-V. And both the owners and the pilots (if not the same person) will chat me up and treat me like an equal, even though I'm flying a 42-year old Cherokee 180. We get into fun conversations about airplanes, and the places we go, and I've never yet run into someone who treated my like the assholes that Bhawk described.
Not saying Bhawk didn't tell it like it was ... but that has to be the exception, not the rule, in general aviation.
My brotherinlaw lives in SE Idaho, and one day he was visiting a pilot friend of his in Driggs at the airport. They were farting around with his friend's biplane (not sure, maybe it was a Waco). Anyway, some guy comes walking up, and starts chatting them both up about the biplane, and how it flew and what engine it had etc. etc. etc. (typical ramp talk). Turns out, the visitor who chatted them up was none other than Harrison Ford. He has a place in nearby Jackson, Wyoming where he regularly flies SAR missions in his chopper to rescue dumb hikers on the Grand (Teton) or whatever ... he's a rich dude, one of the most famous Hollywood actors in the world, and being a pilot, he just naturally likes to talk to other pilots about their planes - whether it's a Waco or a Citation X.
THAT'S general aviation! It's one of the things I love best about flying, and being a flyer - hanging with other flyers.