Yes, this kind of upkeep is definitely required. Replacing little things as they break and keeping an eye out for issues. Old things require this upkeep, which

Yes, this kind of upkeep is definitely required. Replacing little things as they break and keeping an eye out for issues. Old things require this upkeep, which is a different thing from rebuilding, replacing, or upgrading. But the goal of upkeep is to keep the thing in good shape, and usually without any visible change at all, rather than transforming it into something different (assumedly better, but not really). Upkeep is preservation, conservation. We've somehow forgotten how to do that for the vast majority of things.