It's the same as anything... but workshops/public speaking/etc must pay pretty well if you look at all the different people and industries that do it. Like those vegas house flippers that now go around "teaching" people how to do it. They had a tv show and were doing pretty big deals, ballin offices, and driving some flashy cars. But I mean if you can sign up 50+ suckers once a month at a couple hundred or thousand a piece.. why not?