Cast gets 2K a week, orchestra might be more, stage crew is probably more, Jackman/Foster's salaries, you have to pay to retain all those people for his scheduled weeks off. Etc. It adds up.
Sad to hear - Beetlejuice was a fun time. I went twice in early 2020 so likely avoided the worst of the stans which seem to have resurfaced post pandemic.
I often wondered if they were going to survive a principal cast change. Guess not! Pretty good run for them (3 months short of 2 yrs), and unusual for principals to stick around that long. I think the cast really enjoyed the project. Curious to see where Alex lands next.