He doesn't need a huge following, small, elite and exclusive builds a certain attraction. CG can live quite comfortably with his pricing, reportedly about $5000.00 per instructor per year. Very little overhead, he can still live well with just 10 instructors in the country. He has many more than that.
Have you noticed how old cg and the ex-members of TWI's old "President's cabinet" are getting? (How far off is medicare?) And still flogging the same old dead TWI horse?
There were never many people in TWI to begin with (I suspect there are several hundred individual congregations in America which have seen more distinct people pass through their doors than TWI did in its total history).
There are a limited number of ex-wayers still in splinter groups. And a small percentage of those are interested in Geer, and an even smaller percentage of those who are able to get to his classes. It is hard for me to picture any "money rolling in" to cg these days for recycled PFAL.
Some folks, it seems, can't let go.