DDexpII, I'll let someone else comment on the question itself. But I must tell you, as a past president of a club, and attender/member of several others:
The day and age of brick & mortar clubs, is becoming a thing of the past. In the 1970s, '80s, and '90s, most big cities had metal detecting clubs. But by the 2000's up to now, a lot of them had declining memberships, and folded. The reason is simple: People nowadays do their chit-chatting, cross-educating, posting and boasting of finds, making friends, researching, etc.... all through the internet.
Contrast to the old days, where if you wanted to see the latest consumer reviews (dealer demo's and such), you went to an actual club meeting, and listened/watched a dealer demo. Or if you wanted to see what your friends were finding, you went to a club meeting. Or if you wanted to question others about a bug or idiosyncrasy on your machine, you went to a club meeting. If you wanted to buddy up with someone to hunt with, you went to a club meeting.
And as you can see, now all these things are solved with the clicks of buttons and mouses. Thus it becomes extremely hard to start brick & mortar clubs anymore. People satisfy their itches, to know things by simply turning on their 'puters, and going to geographically specific forums, and presto, they're there.