Actually, I just looked up Census Data:
CLT - 1.6 Million (Charlotte, Gastonia Rock Hill)
GSO - 1.4 Million (High Point, Greensboro, Winston-Salem)
RDU - 1.2 Million (Raleigh, Durham)
First off, The FedEx hub is a BIG argument point in High Point and Greensboro. Winston-Salem doesn't care too much since it doesn't affect it too much. But High Point is against it since most flights take off right over the most populated and wealthy part of the city (Believe me, the Delta 727s are too loud to talk over 10 miles away from the airport on takeoff too).
Anyhow, RyeFly said "One thing is for sure, GSO must get the Fed Ex hub to see any large expansion from the airlines". Now I sort of agree, but how are adding another runway and increasing cargo facilities going to bring in more Airlines? Bringing in FedEx doesn't enhance the passenger terminal at all.
Second, Greensboro had plans before 9/11 to increase the North Concourse by 7-12 Gates. That's great and all, but why do this when there are 2 Gates that aren't being utilized now. I personally think this will be done to get Southwest in (as Southwest has said they will serve there soon).
Granted RDU fed off the success of having the Research Triangle nearby. And that boom has helped their airport in more ways than one. But now I just do not see where Greensboro has a chance to succeed. With people so willing to drive to RDU (and Roanoke even) from Greensboro, why should airlines add service, they can add service in RDU and benefit both areas, unfortunately.
I've been saying for years that if Greensboro was managed well, they could have pulled in alot of airlines from RDU, and served RDU, GSO, and CLT all at one time. But none never tried this, except for Shuttle America, Eastwind (which DID do well), and CO Lite (and we know where that is now).
Who knows what will happen. Even though JetBlue is considering GSO service, they will probably add Charlotte. America West is going to RDU soon. Midwest Express is at RDU. And Pan Am has yet to start service. The expansion looks bleak.
I am going to have to bite the bullet and start driving to RDU.