I know this is going into a completely different subject, but there seems to be some discussion about America West's situation in Columbus.
As CactusA319 said, America West did have a good hub in Columbus. The main reason it has slowly been deteriorating is not because of a lack of demand from Columbus. America West itself caused the lack of need for their operations in CMH. In it's early stages, America West's Port Columbus hub provided the airline's only service to Washington National, and made their meagerly served cities of Boston, Philadelphia, and New York much more accessible. There routes were doing very well, flying with A320 and 757 aircraft daily. However as time progressed, America West added more and more frequencies to the East Coast from Phoenix and Las Vegas, without countering this expansion in the West by adding flights to smaller cities in the East from Columbus. Needless to say, the connecting passengers from the West no longer needed Columbus to get to their final destination in the East. America West began to downsize aircraft and the number of available flights. Though the key factor is that the did NOT pull out of Columbus. Why? Because they realized that Columbus does have a strong passenger base that they can still serve profitably. Now, America West is flying CRJ's to Hartford, Baltimore, and Chicago almost completely full daily WITHOUT connecting traffic. It's almost all O&D traffic. So, just imagine the possibilities if America West were to attempt to apply a regional feed in Columbus, and begin operating to only one or two more Western cities, such as San Francisco or San Diego. The regional feed was tried when the hub was first started, which I believe was a poor decision, since the airline was attempting to gain passengers immediately from cities strongly held by other carriers. Though what irks me most is America West's lack of INITIATIVE. So many opportunities have been made available, such as USAirways' discontinuing of their CMH-GRR route, which Skyway immediately took. It is quite clear that the hub in Columbus is only as profitable as America West makes it. The other airlines serving Columbus continue to expand to meet the ever-increasing demand in the Columbus market, yet America West remains virtually stagnant. Only the future will tell what will happen with America West in Columbus.