Logitech tech mouse seems to last 2 years before one of the left or right button starts to have issue. For G300s, the lazy way to deal with it is just to map the extra smaller left and right buttons to left click and right click, and then use it. Does not take that long to get use to the new position.

Guess that is the reason Logitech no longer make those because people have a lazy way out and hence fewer repurchase.