Yes, you are correct that the vast majority of the concert goers do not make a living tribally, but it doesn’t mean that many aren’t striving for it. The Jamband Culture has sprouted numerous tribal bands who have undermined the major record labels by starting up their own labels. (These young bands were all merely fans at one point.)
Tribal bands have undermined “ticket bastard” (as it is often referred to) by selling their own tickets on-line (something Pearl Jam could never quite do).
Numerous tribal production companies have started up around the country. Even the corporate amphitheaters are starting to be ignored as hundreds of independent and band-sponsored festivals are springing up around the country.
More and more longtime fans are starting to find ways of making a living through production, promotion, and even writing, with tribal-like websites, magazines, and newsletters.
And as you move further away from the bands, you can find numerous fans finding other tribal ways to live and make a living while following their favorite bands. Over the years, I’ve met “tribes” on the road who supplemented income by vending food and clothing. Once I met a group who made their living customizing VW buses in between tours.
I think the point I am trying to make is that, like you have said before, we have to get our feet wet. I doubt you believe that “tribal businesses,” like you defined in Beyond Civilization are the only way to go.
I’m beginning to look at the Jamband Culture (and others) as hierarchies in which all levels buy into. Those at the bottom of the hierarchy give the least support to the community and in return, get the least back (the excitement of a few shows). Those at the top of the hierarchies (the bands) give the most, and receive the most support in return. In between are various groups offering various levels of support, and receiving various levels of support in return. It is a hierarchy, but a hierarchy without a disgruntled and rebellious underclass.