Could it be that it's based on a thoroughly forgettable film from over twenty years ago that made very little impression even when it was released? I mean, who now would list it as one of their favorite movies, let alone one screaming out for a musical adaptation?
Could it be that maybe people don't want to go to NYC and see a show about Vegas?
Maybe Tony Danza isn't actually a draw aside from a very limited audience?
I thought it was a musical that in its best moments was merely adequate- I wouldn't recommend it to friends or casual theatregoers who would be spending money on it.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."