I think we should treat precision as part of our continuing development. Certainly, in our day to day flying, as non professionals, gaining or losing a hundred feet isn't the end of the world. But being able to maintain a level as a skill is worth practicing throughout our lives in the air. I want to demonstrate to myself that I am in charge of my aircraft. Or I should say was as I don't fly very much at all now. Certainly never alone. I was a very sloppy pilot. It was getting into a scrape that made me realise that near enough wasn't good enough.
Perhaps this isn't relevant to the original post but I was thinking about an incident when I read it.