I actually wasn't comparing Baitcon to the con in Toronto -- you're putting words in my mouth. I'm well aware that Baitcon is a private party. And I've never volunteered at the con in Toronto (except to run a workshop).

My experience in observing the Boston community is that regardless of what the event is -- be it a private party, a grass roots event for the poly community, or a massive con like Arisia -- a lot of people seem to pitch in, often without even being asked. Also, the people who volunteer are often highly competent (a nice bonus).