Is Broadway being eclipsed by an even glitzier and more glamorous new center of American theater? In a word, yup. “Las Vegas has taken over for New York — certainly for a generation, perhaps for good. This is a seismic shift in the American cultural landscape that has yet to be fully realized. Led by the constantly self-reinventing Cirque du Soleil, which has taken over the high-end entertainment world here and moved light-years away from its street-circus roots, Las Vegas is running full-tilt toward experimental, high-end art created by figures from the opera and performance worlds, even as Broadway drowns in a sea of movie knockoffs, retreads of rock-music catalogs and other forms of cheap pastiche.”