One of the hardest things for an author to do is rework an old story, one that's been sitting on the shelf gathering dust for years. The reason this is difficult is because your writing has vastly improved over the years, and to go back and fix all of your mistakes takes not only an outsider's perspective on the story, which is difficult in itself, but also a sense of humility and courage. Even if you have an editor look at it, there's still so much wrong with it. So why bother? You bother with it because it's still a story you love, just as much as every one that flows from your fingertips, and you want to share that story.