Trackballs were all the rage a couple of decades back, when mice weren't nearly as accurate, maintenance-free, or ergonomic as today's offerings. Logitech was a leader in the space back then, and had a handful of popular trackball designs in its line-up, including ? my favorite -- the Trackman Marble. But over time, their popularity waned and mice got infinitely better.

Although trackballs never really went away completely, Logitech made some noise recently with the introduction of the MX Ergo. The new Logitech MX Ergo is a modern trackball with increased accuracy, a comfortable design, and lag-free wireless operation complete with a long lasting, rechargeable battery...