I have to say, I don't much care for Sasuke, but he is a VERY integral part of the story. Frankly if the Manga didnt have the side story of Sasukes life, and was jsut focused on NAruto becoming Hokage, this would make a DRY story. YOu ahve to have subplots and other character developemnts, the protagonist and antagonist, you can't have a story about jsut one tihng. BORING.