So here we have a laser mouse that's not expensive and that has excellent handling qualities. The only thing we're not convinced about is its positioning as a gamer's mouse. While it's very precise, its reactivity isn't up to the level of the gaming mice offered by the competition - even the MX518 from Logitech. This is because increasing the dpi value on an accurate mouse lets you move from one point to another more quickly with less physical movement. That means the mouse is more reactive, but accuracy can take a hit. That's why there are buttons for slowing it down - for example when you need to aim in an FPS game. The sensation of reactivity is hard to describe, but once you've gotten used to a faster mouse in an FPS, you really don't want to go back.
It's true that laser increases precision in absolute terms, but dollar for dollar, gamers will undoubtedly prefer a more reactive sensor - at least in first-person action games. The issue is a little more complicated for a strategy game. If you compare the Laser 6000 to the G5, it's true that the latter costs $30 more, but the extra cost is justified. The G5 is more precise, more reactive, and above all more flexible to use. Is it because of the new sensor, the 2,000-dpi resolution, the boost of the USB connection to 500 Hz? I can't tell you that, but the facts are there. So for a gamer, I don't feel the Laser 6000 is the best choice. In the same price range, I'd prefer a Razer Diamondback, or else an MX518. But if you can afford it, go for a G5. On the other hand, if gaming isn't your priority and you want a very comfortable and very precise laser mouse for office applications, retouching, or any other application, this one is a good choice. You'll have a simple, very precise, ambidextrous mouse without paying for functions you don't want.