A look at what is currently available on eBay
 Logitech Trackball Mouse OPTICAL CORDLESS MODEL WHEEL USB MAC PC NOTEBOOKS HP US $62.00 
|
 NEW Logitech Trackman Wheel OPTICAL USB and PS2 Mouse/Trackball T-BB18( NIB!! ) US $56.00
|
Items recently purchased from this site
New Sealed Logitech TrackMan Wheel Optical Wired Trackball Mouse Silver Red, MICROSOFT USB PS/2 OPTICAL TRACKBALL SCROLL WHEEL 1.0 ERGONOMIC GAMING MOUSE, LOGITECH CORDLESS WIRELESS OPTICAL TRACKMAN MOUSE LARGE TRACKBALL SCROLL WHEEL, IOGEAR GKM681R 2.4 GHz Wireless Keyboard w/ Optical Trackball Scroll Wheel, IOGEAR 2.4GHz Wireless On-Lap Keyboard w/Optical Trackball And Scroll Wheel, Logitech Trackball Mouse OPTICAL CORDLESS MODEL WHEEL USB MAC PC NOTEBOOKS HP, Microsoft Trackball Optical Mouse USB Or PS/2 With Scroll Wheel Gaming Mouse, NEW Logitech Trackman Wheel OPTICAL USB and PS2 Mouse/Trackball T-BB18( NIB!! ), IOGEAR's 2.4GHz Wireless Keyboard with Optical Trackball and Scroll Wheel, IO Gear GKM681R Wl Compact Keyboard W/ Optical Wrls Trackball & Scroll Wheel, 2.4GHz Wireless Compact Keyboard with Optical Trackball and Scroll Wheel Iogear, Mini USB OPTICAL WHEEL Trackball Mouse For Windows 7 US, Lots of Happcontrols Trackball parts OPTIC SENSOR / WHEEL, Thumb-controlled Trackball Mini USB OPTICAL WHEEL Trackball Mouse for PC Laptop,