Because the NCAA basketball tournament is a disaster with all that travel. There's about 50-75,000 fewer people at NCAA tournament sites than there are at the big bowls. I'd like a playoff, but if it's more than 4 teams, it's pretty necessary to have home games. If it's 16, absolutely. If it's 8, I think it might work. There would be 4 bowls which is essentially what they already do, but with more on the line and more reason to attend. Then you go a little more than a week later for matchups in previously agreed upon locations, and if the championship game is the NFL bye week before the Super Bowl, there is enough time for people to plan trips. That said, I'm in favor of a simple 4 team playoff involving the bowls. That maintains the intensity of the regular season where any loss can end your season, and opens it up a bit for the best of the best to prove it on the field.