That is kind of cool. If I didn't live so close to DC as to make it cheaper to drive there (even with free flights given the cost of rental car/tour bus/whatever) I might take advantage of it. But it only takes me about a tank of fuel and 3-4 hours drive time to get there with the added flexibility of being able to drive where/when I want. For those not as fortunate as I in this respect, however, this is a great thing.