I think half of those has-been celebrities are there because for Robbins, Persuading people like that is like taking candy from a baby.
A few other are there because they are promoting their own interests, and will do anything to be on tv.
The rest of the "true believers" are something else.
What Robbins does is "cherry pick" from his fans, to find those who have been successful, and claim its because of him. The reality is, i bet those folks would have been successful WITHOUT Robbins, and in a large group of people, a certain % will be a success. So just get a big fan base, and 1% of them are successes, and put those ones on tv! Its easy!
You don't see the dozens of Robbins bankrupt franchisees on TV! But you can read about them at the FTC!
ANTHONY ROBBINS AGREES TO PAY MORE THAN $220,000
IN CONSUMER REDRESS TO SETTLE ALLEGED FRANCHISE RULE VIOLATIONS
But his recent infomercial is a classic study in Mass Perusasion. It looks like a simple infomercial, but it is really quite subtle, complex, and effective. Its quite instructive to CAREFULLY analyze what he is doing in that infomercial. Its no different than the techniques used by some of the mainstream cults.