some of my acquaintances make some xx million dollars a year. they are also old. they arrive, and they are ON. they do 3 or 4 of these a week. the company pays. i have anothen friend who makes presentations. only about two a week. they charge about 100k for the presentation. he gets to ride up front on the trip from DC to deepest darkest africa.. he once went to paris, and got parked for 5 days, waiting for his turn.