I believe this happens every single year. Nothing "happened," they are just regular numbers for the post-Labor Day weekend week.
And how neat is it that GYPSY made more money than GREASE? That's when you know which show is supported by tourists and which one isn't...or rather what kind of tourists. Same with MARY POPPINS, a 40-odd percent drop is insane.
I wonder which ones will recover and which ones won't. I'm particular interested to see how LEGALLY BLONDE and TALE OF TWO CITIES fare after the blow they took this week...unlike GREASE, MARY POPPINS, PHANTOM, and SPAMALOT, they don't have a lot saved up to survive these kind of blows (especially with all the shows eying their theatres).
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"