“Perhaps not since the early 1970’s, when Broadway introduced the TKTS booth, have the performing arts in New York seen such sweeping moves to draw audiences by offering inexpensive tickets. The discounts, underwritten for the most part by corporate donors, are an effort to compete for leisure time with an increasing array of multimedia offerings and, in an era when patrons of the theater, opera and classical music are aging rapidly, to reach a younger, more diverse population.”