I think what you think you are gaining in "casual" fans you lose in knowledgeable fans. jmo

Boise State/Texas Christian would actually be worse than having one of them take on Oklahoma, Alabama, etc for the title.

If it was Boise/TCU, nobody would give either credit for winning, even if it was for a 13-0, National Title season. If one of them knocks off a BCS opponent for all the marbles, they will be more deserving in the eyes of the media.