I used to use a fairly generic tiny mouse for many years, at some point I even tracked down a second unit for replacement parts since the scroll wheel and switches were starting to fail, but ever since I got a G502 Lightspeed at the flea market, I can't go back to any other mouse that's light, cheap, has a normal LED sensor instead of the amazingly precise laser sensor, and doesn't have the additional shortcut buttons... I've gotten very used to the switchable free-spinning scroll wheel as well.