First off, Tom14850, I thought "Wicked" and "Mamma Mia" were both good...not the most amazing pieces of theatre, or that deep, but they were both very enjoyable, and for me that's what it's about.
Second, the "Revival" with Lillas White was NOT a revival, it was a return engagement, with a limited run, and I believe the final stop on the tour. It was not intended to be a revival because it was just the scaled down version of the Broadway production.
http://www.youtube.com/huskcharmer