Since most Cherry MX & Topre keys are rated for 50 million clicks.
If there was a simple chip with a tiny watch battery that keeps track of the number of times every individual key was pressed (regardless of whether the keyboard was on or off) so that you can see a detailed chart in your keyboard driver, would you even care?
I'm sure for normal folks, they wouldn't, but for us hardcore keyboard lovers, would this be a feature that is useful?