I was there, I picked up a few cheap cameras that I'm testing out right now. I bought a Bolsey 35mm for $15, but after one shot the shutter get stuck. I also got a Trip 35 for $5, it was previously dropped so the iso ring only turns as low as 125iso, but I'm running a roll right now to see what happens. And I got a Kodak Brownie Junior six-20 for $10, and another 1920's box camera (Eho Altissa) for $30 which takes 120 film and works. Playing with it now to figure out the different apertures and exposures.
It was my first swap meet and it was fun, some really good deals in there. I was disappointed that I didn't see any film or photo paper for sale though. I'm definitely going to the next one, whenever that is.