Actually, there's a difference between method and style. Lots of guys use the same methods, but with there own style. When you see people emulating mystery, you know that they have not sufficiently assimilated the techniques to express their own style.
PU 101 is mystery method, but not mystery's style.
Charisma arts is a style and kind of a method, and doesn't have all the elements that PU101 and MM have.
My impression is that El Topo, at least, will actually give you his good stuff in the free seminars. There's still a big difference between hearing about a skill in a seminar, and having a coach help you develop that skill in the field. Also, There's always new material.