I would disagree. I'm guessing your asking for someone to name story lines that aren't Demon in a Bottle or Armor Wars? Not sure that alone proves anything.
Iron Man has been a top tier comic character, in general for decades. It's not like he only had some 12-ish mini series. His movie success only showed to a general, wider audience why he's been published non-stop for over 40 decades and the success in that medium that he's had.