This is actually not a bad deal for the Mid-Atlantic based skier. Frontier offers direct service to Denver from both DCA and BWI. Lodging and trasportation to and from Vail would still be a hurdle. Also, there are quite a few black out dates. I wonder what other restriction are lurking in the fine print.
I guess it is still cheaper ski locally and make the occasional big trip further afield, but this is an interesting option--especially for those lucky enough to own property out west.