Segways do have some advantage, for the elderly and handicapped
Isn't this why they invented electric wheelchairs or those little electric buggies I see elderly people zipping around on. I think these buggies are cheaper than the Segway anyhow. I was riding on a bike path and up ahead was a lady on an electric buggy making her way up a 8% incline, she managed to hold ~16kph/10mph up the hill. It took me a while to catch her, she was really moving.
Actually the Segway would be useless for the elderly or handicapped as it needs the operator to stand to use it, these people would probably have some difficulty using it.
Another invention to file under the category of : why build it? because we can.
CHEERS.
Mark