> I buy the latest MX, Vertical, and trackball almost every year unless it's super minor updates so maybe I'm just not using one mouse long enough but they've b

> I buy the latest MX, Vertical, and trackball almost every year unless it's super minor updates so maybe I'm just not using one mouse long enough but they've been fantastic. That's exactly why you don't experience issues, your devices don't spend enough time getting clogged with sweat, oil, dry skin and dirt. All of my gamer friends use Logitech to the max of their abilities, and almost all have experienced issues with their products. We're from a poor country, originally, so we only change the gear when it's absolutely needed. Personally, I only recently retired my old MX518 bought in 2005 and I had to rewire it twice in 25 years, the USB cable fractured each time, but the mouse itself was flawless until, 25 years later, the MOUSE3 button stopped working. I like the idea of having repair guides for devices, to fiddle less when self repairing. I'd expect fewer negative reviews once these guides get published.