My long-term mouse was a Kensington Lifetime Mouse. It had a couple wheels on the bottom. The company never released them with USB, only 9-pin serial and PS/2, and eventually the feet abraded away, which interfered with the wheels' rotation. Then, when I wanted a mouse wheel, I got a Logitech Trackman with a thumb trackball. The buttons gave out on it after a few years of MMORPG, so now I contemplate its replacement, the Logitech M570 wireless trackball, and its price tag, and sigh. These days I use inexpensive wired Logitech optical mice.