The rumor of a BNA base has been around since before I got hired in 1994. During my NH training when the VP of Schedule Planning came to talk to us one of the things that he said was that BNA would never be a crew base. His reasoning was that SWA could originate an aircraft on the East Coast and have it in BNA in time to be an originator. Therefore there wouldn't be enough originators for a SWA base. So far for over 23 years he has been correct.