Another anecdotal evidence, I am typing on a Logitech Deluxe 250 keyboard from 2008, which has been used every workday for the past 6 years. So, they can make

Another anecdotal evidence, I am typing on a Logitech Deluxe 250 keyboard from 2008, which has been used every workday for the past 6 years. So, they can make long lasting keyboards or at least used to.