GavestonPS, you haven't met my youngest daughter. She's a bit embarrassed now at her insistence that we see Wicked on Broadway even though we'd seen it on tour. But she really wanted to see it, almost as much as the OBC of Hamilton. And I didn't really mind, even though we missed some other shows that were playing in the spring of 2016. Rachel Tucker was Elphaba, and she was really good.
I think Moulin Rouge! skeptics are overthinking this. The show is an event. The box office thus far confirms that. It's going to attracts fans of the movie, people who like spectacle, tourists from across the country and the world. A lot of fairly jaded people on this board have praised it. That's a lot of people. Some will be scared away by the cost; others will be disappointed by the show. But Hadestown has the same "problem."
The average person doesn't care about "mixed reviews," which haven't really been all that mixed. Sure, it's got some pans, and Sara Holdren at Vulture didn't like it. but regular humans don't make decisions based on dissenting views. The main takeaway I've heard is that the show is imperfect but wildly entertaining. That's a bad thing? It doesn't make me not want to see it.
While the show's running costs may be a problem going forward, it also is not a star-driven musical. People are going for the spectacle, not Aaron Tveit or Karen Olivo. I don't know how long it will be a $2 million-a-week once it has 8 performances a week, but I wouldn't be surprised if its staying power is longer than many expect.