I bought some at WDW last week! They came out to $40.37 I think (for the Adult ones)...I got mine in the Emporium on Main Street. They had them available in Pink and Lilac for the adults...I didn't really look at the kids too closely.
I had run/walked the half marathon that weekend and I had some toe issues and couldn't fit in my sneakers. I have never worn Crocs before, but they were surprisingly comfortable....they didn't really rub at all.
Here is the only picture I could find of my feet from the trip....kind of hard to see them but you get the gist.....my son kept going Mickey and poking his fingers through the holes which was quite annoying, LOL.