http://gizmodo.com/why-the-hell-would-anyone-use-a-trackball-mouse-1800564295

 

 

http://www.logitech.com/en-us/product/mx-ergo-wireless-trackball-mouse

Lol still dont see how you game with one of those damned things lol. Course some folks as the same about the Razer Naga Epic I use. They are like 12 side buttons? Why? Well in MMOs it basically gives one finger control over all task bar buttons as well as weapons etc. In FPS games I can cycle through weapons as quick as the animations will allow. plus heal etc.

 

The only downside I see if they claim 20%less muscle activity with will actually hurt you in the end as it doesn't engrain muscle memory as much as a normal mouse.

use one and you will see. The movement is more fluid.

Never liked trackballs. I'll stick with the Razer Naga Epic thank you very much. Something about having all your number keys available on the side of your mouse. love being able to swap weapons faster than the animation allows  

I can't do trackball all either, but one of ours (JJedsr) swears by it.