Believe me sir,
AirTran carries its share of baggage; working in PNS
as a FL
customer service/Ramp crewmember, Pensacola gets tons of military flights with seabags and duffle bags out the rear end, sometime as many as 100 seabags and duffle bags, we get these flights on average three or so times a week sometimes twice a day...our 717s can carry its share of baggage, and the new birds we plan to acquire 737-700 and 737-800's those airplanes can carry sufficient cargo
Besides, the passenger could care less weather our bin is narrow body airplane bin our a A300 bin...many travelers look for an affordable getaway package to the islands without the steep fares of major carriers.
So in time, AirTran will likely make its move, and pounce on the carribean market, prevailing, despite the size of AirTrans' cargo bins.