i am guessing your prints will start to suffer. for instance I replaced my bed because I noticed that the parts I pulled off it were not flat. the bed was warped. so i replaced it( easy) and installed a bltouch. (not an easy thing ) , you may occasionally want to check the tightness of your screws. think of it like a car. if you dont pay attention to it and meet its needs, daily, monthly, yearly maintenance it will fail on you earlier than it may otherwise. it will be a lot of noticing little things and diagnosing what may have caused it . sorry that is not a do this at x time, but best i have at the moment.