@matigo No, it's my everyday device. I have a ton of stuff really: Magic Trackpad, Logitech G903, Logitech G50\d (can't remember the exact model), LST trackball, Logitech Trackman Marble from c. 2004, drawing tablet….
I've always loved trackballs. Used to be pretty good sniping in Team Fortress 2 with this Expert.