Martin raffles off one guitar at the Phila. fest, and I think the money goes to the fest. The tickets are pricier than Winfield or Old Songs, I'm pretty sure. (If I kept stuff on my desk organized neatly, I wouldn't HAVE to guess!) Their crafts are juried, so only the hoi polloi of crafters can get in to sell things. I suppose one thing that helps keep Phila. going without sponsorship is just that one HELL of a lot of people pay to attend.