For New England people, there's the MIT Swapfest. https://w1mx.mit.edu/flea-at-mit/ https://w1mx.mit.edu/flea-at-mit/ https://phys.org/news/2016-09-mit-flea-s

For New England people, there's the MIT Swapfest. https://w1mx.mit.edu/flea-at-mit/ https://w1mx.mit.edu/flea-at-mit/ https://phys.org/news/2016-09-mit-flea-specializes-rare-obscure.html https://phys.org/news/2016-09-mit-flea-specializes-rare-obsc... https://www.youtube.com/watch?v=8thW6anxdTQ&t=1m https://www.youtube.com/watch?v=8thW6anxdTQ&t=1m