Katbran, I know what you mean about regrets. Years ago I saw a stunning piece of scrimshaw that I didn't buy, and regretted for years. I think these would have haunted me, too.
Mystic has an art show/sale in the streets of the old section of town the second weekend in August, every year. Mostly paintings, but there is one street next to the river where jewelers and crafters set up their tents. This show is worth attending (go early to find parking!) We used to go every year, and bought a few paintings, but it's always the same weekend as the East Coast Gem, Mineral and Fossil show in Springfield, MA, and doing both is a bit much.