There is one logistical disadvantage: as a wireless mouse, the G602 requires batteries. Logitech's proprietary wireless adapter is tiny, and comes with a USB extension cable for use with desktop PCs (so you can get the adapter closer to the mouse for better reception). If there is a competitive disadvantage to the wireless connection, it is not one I could detect as a gamer. For desktops, a short extension cable is included to bring the wireless adapter closer to the mouse on your desk.
The mouse polls at 500Hz (position is sent to the PC 500 times per second), via a proprietary USB adapter that’s small enough to leave plugged in to any gaming laptop.
It captured and reported every motion and button-click accurately, and without delay. Each has its advantages, but in my extensive real-world gaming tests, the G602 matched both for responsivity and reliability. I personally use two wired gaming mouses at home – the original Microsoft Sidewinder (which I maintain is one of the best gaming mouses produced), and the 19-button Razer Naga. It’s hard to automatically dismiss wireless PC peripherals when console gamers have been playing competitively online with wireless peripherals for about eight years now on the Xbox 360 and PS3. In any event, wireless gaming mouses are losing some of that stigma and certainly becoming more common. However, it’s unclear whether wired gaming mouses have ever given given a true advantage over wireless, or if it’s all just perception.
This is certainly sensible if you’re talking about the sort of low-cost wireless peripherals you might use in the office, though that may be more a matter of design than any shortcoming of the wireless connection itself. Hardcore gamers have traditionally shunned the wireless mouse, for its lower responsivity and reliability compared to the traditional wired kind.