Segways are divided into the categories of gen 1 and gen 2. The gen 1 are the older machines that haven't been manufactured since 2006, and the gen 2 ones are the newer ones.
Generation 1 machines include such models as p133, XT,e167,i180/GT and i167/i170. You may still be able to find some of these on the market, as well as parts for these, but primarily you till find the second generation machines such as model i2, x2 and the various manifestations of these such as the patroller or the golf variations that are specially equipped for their purposes.
Here are some of the generation 2 Segways that are currently up for auction on Ebay.
Segway X2 Models
|Segway X2 off road used sealed express ship seller refurbished $4,899.99 Time Remaining: 1d 19h 17m Buy It Now for only: $4,899.99||Segway X2 OffRoad Single Owner Only 245 miles $5,000.00 Time Remaining: 1d 23h 21m Buy It Now for only: $5,000.00||2014 PRODUCTION BRAND NEW IN BOX SEGWAY X2 SE FULL FACTORY WARRANTY ZERO MILES $5,100.00 (2 Bids) Time Remaining: 2d 9h 36m Buy It Now for only: $6,495.00|
|i2 Segway PT Reduced 64 miles Holiday Gift will ship 6 10 Dec $5,250.00 Time Remaining: 3d 10h 45m Buy It Now for only: $5,250.00||Segway i2 PT LOW PRICE Used runs great buy from an Authorized dealer $3,698.00 Time Remaining: 4d 13h 16m Buy It Now for only: $3,698.00||Black Segway i2 Transporter bonus new demo fast ship $5,999.00 Time Remaining: 4d 16h 25m Buy It Now for only: $5,999.00|