[QUOTE=Boofer;31192028]I think there's room for more than one airline to have a strong focus city/mini-hub at some airports, as there is at LAX. BOS comes to mind, as do SEA and SAN....[/QUOTE]
Please do not make SAN a hub. From everything I have read flights are more costly originating out of a hub and harder to get upgrades. I currently have the choice of a number of carriers and prices are competative.