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 $6,599.00 Time Remaining: 4d 6h 45m Buy It Now for only: $6,599.00||Segway X2 x2SE off road new sealed express ship newest model $6,699.00 Time Remaining: 4d 6h 47m Buy It Now for only: $6,699.00||Segway PT x2 2014 Revision Sport Wheels $6,449.00 Time Remaining: 5d 8h 44m Buy It Now for only: $6,449.00|
|AMAZING 2013 Segway i2 White $5,325.00 Time Remaining: 9h 11m Buy It Now for only: $5,325.00||RARE WHITE MODEL Retired SEGWAY i2 commuter personal transporter Low Miles $4,899.00 Time Remaining: 1d 2m Buy It Now for only: $4,899.00||Segway I 2 black used $2,800.00 Time Remaining: 1d 2h 30m Buy It Now for only: $3,750.00|