For me, the attractive thing about the FSM religion is that it is no more inconsistent nor improbable than many other organised religions. Many organised religions claim to be "the ONE true way". Some do so by insisting that all other religions are wrong, despite having no proof other than "faith". Others do so by (oddly) accepting, even embracing other religions in a grand gesture of "tolerance", without actually questioning or modifying their own beliefs. A little patronising, perhaps? How can so many different belief systems be accepted equally as "the ONE true way"?
Personally, I'm a Lapsed Agnostic (I used to wonder if there was an intelligent creator but now I just can't be arsed).