When it comes to pointer devices. I think most people use mice. The same couldn't be said about my grandpa. He actually was one of the few people that used a trackball. Now for those that don't know what one is, or have never seen a trackball, instead of a bottom optical sensor to control the x and y axis, there is a ball on top. This ball is manually manipulated based on the design. Some put the ball under your thumb, while others would put the ball in the middle under your fingers. It takes a while to get used to, so I think I'll side with the rest of the world and stick with the optical mouse.
While on the subject of nostalgic things, can you believe that the original mice had rubber balls inside of them. I can remember having to constantly open up the bottom to clean the ball, and the rollers, as they would build up dirt and grime and hinder the tracking ability. It was only 10 years ago that we had our first mainstream optical mouse. Now the norm is optical mice and they come in every flavor. There are mice for gamers, regular users, tiny portable notebook mice, wired, wireless, 2 buttons, 17 buttons, I could go on. I'm usually a simpleton when it comes to mice, but for now, I think I'll make an exception.
This exception would be for the Thermaltake Tt eSPORTS Black Element Gaming Mouse. The Black Element looks to be a strong contender in the world of gaming. The Black Element has a ton of features that any gamer would love to have. The main features push it towards a good MMO or RTS gamer mouse. The Black Element has 9 buttons total. Each button can be individually programmed and saved on 5 possible profiles. The mouse has 128KB of onboard memory, so the profiles can be saved to the computer, as well as on the mouse, for extreme portability. The laser engine on the Black Element can go up to an astounding 6500 DPI. There are LEDs inside of the mouse that can illuminate up to 5 colors. The Black Element has a rubber coated finish for exceptional grip and OMRON gaming switches with a life expectancy of 5 million keystrokes. There are also weights that can be adjusted on the underside.