Sure, but that was years ago and won't affect the Avengers. The focus will be on Thor/Cap/IM, so a flop from either Thor or Cap would have been a major downer. LoL, well, I don't think you have anything to worry about. Marvel is building all three of these characters into successful franchises. All of them will be showcased in Avengers, as will Hulk of course (despite the relative lack of success of that particular movie).