What everyone has to realize with upgrades is that when (not if) Southwest goes FULL international with it's first wide body, the upgrades will drop to 5-7 years for everyone on the current list. Including all the Airtran guys.
It's the equivelant of looking at Delta in the early days before they went to Europe. The growth potential is off the map.
Southwest will already have 3200+ flights a day feeding a new international network. It's the best domestic to international feed in the nation, easily.
I think all the junior SW/AAI guys are in for a wild ride.
I hope you are right Red but IMHO the days of explosive growth are over. I have no doubt that LUV will grow but it will be more conservative and calculated.