Computer Mouse
Similar to the trackpad, computer mice break down over time, though they likely still work. From this photograph, you can tell someone got good use out of their computer mouse. They usually last about seven years, but if you’re using your mouse daily for gaming and other things, it’ll diminish to about three years. The good news is that computer mouses are easy to replace and don’t cost that much, though people don’t use them anymore (Gadget Review).