>Progress ain't what it is cracked up to be.<
I too miss those theatres and the way 45th and 46th Street used to look. The Marriott Marquis is one of the worst things ever to happen to New York City. But the news since 1982 hasn't been all dire. Since then, we've gained the New Amsterdam, Selwyn/AA, Studio 54, Biltmore/Friedman and the Ritz/Walter Kerr, and like them or not, the Marquis, Lyric and Sondheim. Though not a legit theatre, the New Victory returned to live performance. Ambassador Theatre Group has closed on the Hudson, with the Times Square also rumored to be a possibility. So we lost three active Broadway theatres (Morosco, Helen Hayes and Bijou), but five old theatres returned to legit use, with two more possibly on the way, and three new theatres were constructed.
Also during that time, many of the vintage Broadway theatres have received beautiful restorations (Shubert, Winter Garden, Belasco, Barrymore, Longacre, Schoenfeld, Booth, Golden, Music Box, Hirschfeld, August Wilson, St. James, O'Neill, Friedman, Kerr, Rodgers, Nederlander). Many of these theatres look better now than they have in decades. The Cort is rumored to be next on the Shubert's list, and when its original riotous color palette gets restored, it will be a dazzler.
During the 80s and early 90s, the Nederlander and the Ambassador were empty for years at a time. The Minskoff and the Gershwin were also often dark, hosting numerous flops. Obviously, three of the four now have long-term tenants, and the once-scorned Nederlander is booked rather steadily.
Begin at the beginning and go on till you come to the end: then stop.