Ooo...Segways are so much fun. My dad worked at a convention center, and the company had them to keep their employees from having to walk 10 miles a day (it was a really big center). I got to ride it a few times. They are really stable and responsive. I rode it through doorways, stopping first to open the door, and between rows of folding chairs. They go really fast and feel like flying!

If I lived somewhere that actually had sidewalks (and wasn't trying to save money for graduate school), I would buy one. Ride one if you get the chance!