Romney won because Obama has no desire to debate a man who is everything evil in substance to which Obama has lived his life to erradicate. If you really see Obama, he doesn't much like these forums because, he can't dictate the controls over the format with which he can pull out his trusted sidekick, the teleprompter. Obama is more interested in his golf buddies, or hangin' with a Rapper. Getting on stage with Romney is like Superman going rock collecting for kryponite.
If Obama can miss a majority of his security briefings, and other important necessary Presidential meetings. He can put off his Presidential Debate outcome as hohum, really, I gotta. Obama knows, going into the Voting Booths he owns a majority of the Black vote.