I very much lucked into my group. I am a financial advisor who does most of my business at my clients homes, very old school. Wealthy people have nice systems, people with nice systems love to talk about them, and they want to be helpful for the most part.
Five years later on we've got about 14ish members (when some aren't arguing), very informal. We share thoughts, swap equipment, listen to and talk about our gear, talk a little trash, and see other at shows (Axpona is local to all of us). I'm tighter more with some than others, but it's been a valuable experience