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 TURF $3,800.00 Time Remaining: 3d 17h 32m Buy It Now for only: $5,200.00||Segway X2 $5,000.00 Time Remaining: 5d 16h 8m Buy It Now for only: $5,000.00||Segway X2 off road used sealed express ship seller refurbished $5,299.99 Time Remaining: 7d 17h 6m Buy It Now for only: $5,299.99|
|Black Segway i2 Transporter bonus new demo fast ship $5,999.00 Time Remaining: 13h Buy It Now for only: $5,999.00||Segway i2 No sales Tax in Oregon $6,499.00 Time Remaining: 19h 52m Buy It Now for only: $6,499.00||Black Segway i2 SE i2Se commuter fast bag deluxe tail light free extras $6,499.00 Time Remaining: 1d 8h 52m Buy It Now for only: $6,499.00|