When I returned to comics after my son was born, I had heard about this series. I had never really collected Spider-Man previously and was intrigued by this take on him. It didn't hurt that I liked this "new" writer Brian Bendis and the art was pleasing. I hunted down every back issue and today it is the 6th highest issue total of any comic book series in my collection (with 137 to Batman's 143) and the only one I am still collecting.
Marvel's next big Ultimate Universe event is entitled "Death of Spider-Man" and if it is indeed the case, I don't think I will mind, as this series seems to have gone as far as it can.