I really have no idea why people are saying there is "no buzz" about Ghost.
I live in upstate NY and I've heard people talk about it that have little or no association with musical theater. I find it odd that I'm a few hundred miles away from NYC and I have heard talk about it.
And I've heard the music...it's not groundbreaking but neither are a lot of show tunes that people on here fawn over. The music reaches a lot of people on a emotional level...that's all they wanted to achieve. Not to "break new ground." They did that with the sets though.
I think people are underestimating it too. It is based off a movie that MANY people not only know...but love. It has a modern score, fantastic sets and special effects, and IMO, a leading cast that, while not perfect, are very engaging. The show is doing very well in London, which I know is not a FOR SURE indicator that it will do well here, but it certainly shows that there is an audience for it.
"Life in theater is give and take...but you need to be ready to give more then you take..."