Remember, this is MY opinion....
I've seen several of the Disney on Ice shows, and have seen the Wizard of Oz on ice (not disney)...the Wiz was probably the best one...
The "Princess" show strikes me as nothing more than a way for Disney to pry some more dollars out of our hands....in the same manner as all of the "II" movies/videos Disney has been cranking out lately (Cinderella II, Lion King II, Jungle Book II). They contain nothing new, just a rehash of the old story.
The Princess show is like a K-Tel Greatest Hits album. If you get this reference, it shows how old you are.
We've got all these costumes/props lying around...let's put them all on ice just to make more $$$$.
Again, this is MY opinion. be nice.