3 Years later: It is finally time to put it to rest
Its time has come. The left button is starting to fail. The internal left click switch has become unresponsive forcing me to put more pressure on it. But when I do so, it tends to get stuck for a little while, making the mouse respond as if I was doing a drag operation with it, instead of a single click.
3 years is how long it last. I can say this is a wonderful mouse. I'm getting a replacement ASAP. Won't consider anything else for my work and gaming while it still ships.
Battery is still great after these 3 years. The general outlook of the mouse, despite its intensive use (consider an average of ~9 hours a day for 365 * 3 days, for a total of ~10,000 hours) is very good. Doesn't look new, but still looks good. Every other part of the mouse still works.
NOX COOLBAY Side Window Black; NOX Apex 600w Modular; ASUS P7P55D-E Socket 1156, Sata 6Gb/s & USB 3.0;
Intel Quad Core i5 760 2.80 Ghz @ 3.60 Ghz, 8 Mb de cache; Gskill Ripjaws 4 Gb DDR3 1600 Mhz CL8 Dual Channel;
ASUS GEFORCE GTX 560 TI DC II 1024MB GDDR5; Samsung 1 Tb 32 Mb SpinPoint F3; NEC 24x Sata black
Artic Cooling Freezer 7 Pro Rev.2;
2x Samsung SyncMaster S43NW 8000:1 (1440x900)
Logitech K120 Keyboard and Logitech Performance Mouse MX