SEGWAY COST = $5350-$7200 , SPEED = 12.5mph/20km.

Price Via article:
http://hubpages.com/hub/How-much-dose-a-Segway-Scooter-cost

Cost according to Amazon is also as given in the title of the post:
http://www.amazon.com/Segway-i180-Human-Transporter/dp/B0006HU2FA