This summer I had the opportunity to try a Segway (compliments of Sara at Glide
http://www.glideusa.com/ ). This was at The Gorge in George, WA, a House of Blues concert venue with lots of steep hill walking between the 3 or 4 stages of entertainment.
In my job, I need to get from stage to stage at various large events and a golf cart or John Deere ATV isn't always available or practical. The Segway was very easy to learn and makes the pain of a titanium plate in my leg lessen. I just need to figure out how my doctor can "prescribe" it, so insurance will pay the $5000!