Re. South Park: Why do you think Stan and his family have changed religions so many times?

Stan Marsh, as fans of 'South Park' must realize, has been, at least for a while, involved in Roman Catholicism, atheism, Mormonism and Scientology, in that order. He became part of these different religions along with other members of his family. It seems like every time Stan and his family make a change, or maybe more accurately put, an exchange, they become even crazier and more dysfunctional than they were prior to the conversion. Furthermore, they are never satisfied. Given the strategic location of South Park in relation to the state of Utah, I am not surprised that the Mormons manged to nab at least some of them. What surprises me is that the Mormons did get any of the other three boys and their families into their clutches. I wonder where they will go next.