I think that there will be plenty of people who are very willing to pay 5K for a Segway. After all, we don't seem to have a shortage of people wilIing to pay 50K plus for a car. I have not operated a Segway myself, but I have seen them in operation in person on two occasions and I was very impressed. The technology that the Segway employs represents a large leap over something like a scooter. The Segway is much more flexible than a scooter because it can operate in many areas, such as indoors or on a college campus, that you would never use a scooter. I think the Segway is going to be a big hit, especially if they bring the price down to the 3K area. It may take a couple of years, but I think the Segway will eventually develop a large group of users and fans.
Vespa scooter, recently sold on ebay for $900: