Flying Clubs...
I've tried to start a helicopter flying club in my area a few times, and I've always found several folks who are interested. However, the pilots that wanted to do it didn't really have the budget maturity (in my opinion). Cost is always a factor... hangar fees, scheduled maintenance, unscheduled maintenance, principle & interest payments (if you finance), and insurance costs. Most people have no idea of what they are getting into, and for helicopters you need to have 3-5 pilots for R22 and 5-7 pilots for R44 to make it worth while. Otherwise, it is simply cheaper to rent your aircraft from time to time. If you do it, you should require 200 hours + safety course + members own their own home in your area + Class II medical. In the U.S., you CAN setup a non-profit company for social purposes (flying club); therefore, there are tax benefits if setup properly. Good luck!