I understand what you are saying. Problem is, the people that did join NJOVP were doing the right thing by joining a club and riding legally and they are the same people who I talk to that say those places are too small and boring and would rather ride illegally. Quad riders will never as a controled group pay to ride and be confined to a certain area, they want to ride everywhere.
I am speaking from experience, I sold my quads at the beginning of the summer because of not being able to ride anywhere. We used to travel all the way up to Shamokin, Tower city, St. Clair, and Shenandoah to ride because of all the open space, and all of it was illegal riding. I didn't want to do it anymore, sure I didn't care when I was younger but now I have children to lead in example.
In a nut shell, No one will pay to be confined to a certain area it's just plain boring to riders. Yuo will get a hand full of people but percentage wise it would be a veeeerrrry small fraction of riders.
Take your street bike, let them tell you that you are only allowed to ride in your town limits, or you have to by a permit to go outside of town. That will get old quick. And eventually you will sell the bike or just take your chances and ride wherever you feel.