Where in Massachusetts do you live? If you’re not already, we should get you in one of the clubs. There is Northeast Bonsai near Boston and Pioneer Valley in the Springfield area. John Romano runs a club at New England Bonsai in Bellingham, MA. It might be more of a drive depending on where you are, but I’m the President of the Hartford, CT club, and you’re welcome anytime.
I found that joining the club, making friends, and getting connected was the best way to meet people who were into collecting.
Every year, one of the local guys, Kris Springer, holds a giant meet up for people buy, sell, and trade trees. I’ve gotten some good collected trees at the swap meet. At this year’s meet, we had guys from as far north as Maine and as far south as Washington DC all gathering in Springfield, MA.