So I've had three logitech mice fail on me in about 2 years or less because of mouse click failure (cannot click and drag). My mx1000 was the first to fail but lasted over two years. My g9x failed in less than 2 years, and the replacement they sent me lasted less than a year. I've done a google search on durable mice, and it seems logitech is the best, and razor appears to be the worst culprit. Are there any other companies out there that make reliable mice? I have a feeling these mice are built to fail quickly so these companies can make a buck off of us, but maybe not.