They've definitely got the writing chops to make the book and score incredible. This could be the new Spamalot, but with a much wider potential audience. It also has the potential to piss off a lot of people. I'll be really interested to see how the Broadway community reacts to it once it's in previews, which will probably be a long way off since they haven't announced a venue or casting yet. As a first forray into stage musicals, this was an odd choice to me. I guess they figure that if they're going to take a property that's not South Park-related to NYC, it may as well be one that'll get a lot of press for being controversial. I can't wait to get more info on this, and to see just how outlandish they go. It can't be any worse than Shrek, anyway... right?
Unless your unlucky like me and you live in a crappy area where values are trending down. Or you can check the real estate records at your local county courthouse and find some "comparable" houses that have sold recently.