Why Buy a Segway? (one might ask)
Well, for me, it's part environmental concern, part "social coolness" factor, and partly to save fuel costs.
For the environmental part, the Segway uses electricity for power, and that is generally cleaner to produce than gasoline, and the emissions are much lower.
For the "social coolness" factor, well, I am a nondescript 42 year old guy with mostly gray hair and an ever-so-slight belly paunch, and I'm raising two kids under 10 yrs old. My social opportunities are EXTREMELY limited at best, and completely nonexistent at worst. If people talk to me on the street and ask me about my Segway, that's more social interaction than I normally get, and I appreciate that.
As for the saving fuel, well, the cost of fuel will NEVER repay the initial outset cost of purchasing the Segway. But based on the 400-450 Miles Per Gallon equivalent which the Segway achieves versus a car, (even my 48.5 MPG Hybrid car) I'm saving between 25 and 31 cents in fuel cost every day that I commute on the Segway. So that extends the gas tanks in my car and means fewer $2.50 per gallon fillups. At the end of the year, I hope to save between 1200 and 1500 miles of driving on my car, so that slows the depreciation value of my car for resale purposes. So it helps in numerous ways.
In addition, I take my kids to Texas twice a year to visit family. When we do go, taking the Segway will be fun for all the family to glide on and it will enhance all the lives of those people, even for a short time and in a very minor way. It's at worst a conversation piece.
I hope those are not broad rationalizations but instead are genuinely good, sound reasons why a Segway is in my care at this time.