I even asked Marvel players in my scene why they don't play DOA, VF, etc. It's because those games look "too hard and complicated". Marvel players even admit that Marvel 3 is a retarded game and that they only play it because it's like "crack".
Marvel is fun for super casual play. I can't even see how it can be played in a serious manner. I loved MVC2 and MVC3 was alright, but I can't see em as tournament games.