Cool idea.....
.....I like it!
You could probably just pre-arrange an area at a local fairgrounds type swap meet.
There is a pretty big one near me in Roseville, CA (using this one as reference), Denio's Farmers Market & Swap Meet.
If people go as individual the booth area is $35/day or $49/weekend. I could see if there were in interested you could probably pre-register a larger area and if sellers split a booth you would be looking at $25/weekend or $17.50 for a Saturday only type deal.
Link:
http://www.denios.org/weekend-reservations
Main site:
http://www.denios.org/index.php
I think buyers only pay $3 to park, then walk in for free.
It's pretty much all outdoors - but they might have some indoor stuff available, too. BTW, I know someone that does computer programming for the Roseville location (my father), so might be able to get a deal there, too
Twice a year would be sweet, maybe even consider different locations (once per year at each). Probably consider 2-3 months before and after CAX to spread it out, too.
One location in the Sunnyvale/Santa Clara/Bay Area, the other in Roseville
-Subscribed to this thread, looks like fun!
-GackAttack