Watch it? I do believe this deserves a serious live action remake, and make it for adults. Just go nuts with it, dare to make it for a much older audience, and let us see where it lands. I do think I was too young when I saw it, but you see the main character and you love him and you feel his anger, disappointment, and being powerless in the face of evil. It is worth a re-visit if you haven't gotten around to it in a while.
Until the next item on my list!