People go to the beach, fireworks displays, movies, BBQs, to the mall and they leave NY in droves. They do everything except come into the city to go see a show. Yes, there are tourists, but there will still be a lot of empty seats especially Sunday matinee and evening.
A long time ago I worked backstage on a reasonably good-sized hit. July 4th was the only performance we were allowed to ask friends to come in as comps and also the only performance where the house manager invited those upstairs to move downstairs at 7:55.
Musicals do better than plays. Comedies better than dramas. I cannot imagine who is going to be in the Barrymore Theatre this coming weekend for instance.
"If my life weren't funny, it would just be true. And that would be unacceptable."
--Carrie Fisher