Airtran will continue to charge baggage fees until they are completely phased out. SWA does not want to invest in the man power to upgrade the Airtran computer system in order to eliminate the baggage fee from the system only to have the system shut down in the near future. So allowing the booking of the Airtran flights on the SWA sight and giving free bags, is SWA way of working around the baggage fee system for now.