Nevada, in a burst of ingenuity, built an economy by exploiting its sovereignty. Its strategy was to legalize all sorts of things that were illegal in California ... after easy divorce came easy marriage and casino gaming. Even prostitution is legal in Nevada, in any county that decides to allow it. Quite a few of them do.
Lawrence Friedman, American Law in the Twentieth Century (New Haven: Yale University Press, 2002), pp. 596–597