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 new sealed express ship $6,699.00 Time Remaining: 4h 24m Buy It Now for only: $6,699.00||Segway X2 new Adventure fedex w light rack bag extras fast delivery anywhere $7,399.00 Time Remaining: 1d 23h 18m Buy It Now for only: $7,399.00||2014 PRODUCTION BRAND NEW IN BOX SEGWAY X2 FULL FACTORY WARRANTY ZERO MILES $5,400.00 (4 Bids) Time Remaining: 5d 6h 15m Buy It Now for only: $6,599.00|
|Segway i2 PT Personal Transporter Purchased 2011 $4,400.00 Time Remaining: 1d 1h 39m Buy It Now for only: $4,400.00||Black Segway i2 Transporter bonus brand new fast ship se available $6,199.00 Time Remaining: 1d 16h 38m Buy It Now for only: $6,199.00||Black Segway i2 commuter fast bag lock deluxe mats fast release tail light $6,699.00 Time Remaining: 3d 21h 16m Buy It Now for only: $6,699.00|