The very old Microsoft IntelliMouse are some of the best designed mice in the world. They always just work as designed. (Until you found someone with a glass desk, then it was time for a mousepad.)
My intellimouse explorer lasted until someone stole it after ten years, which isn't bad. I do think since then mainstream mouses are less durable (they only last 5 years!) but they didn't have the loose click feeling that the Microsoft mouses did. So Logitech and Razer for me.