I spoke with a customer relations agent on the phone today from SWA. First, they are not participating in ME as of this time. The reason she gave me was that SWA still has at least half of their passengers use paper tickets, and to get boarding passes printed at Disney or any other off site, all passengers would have to have paperless tickets, i.e., online reservations, which I believe many of us here use. 2nd, the possible reason for increased airfares for the participating airlines is because they are paying a fee to Disney to participate in the program. How much, she wouldn't say. My guess $5-10 per passenger to cover the costs associated with checking bags at your resort and getting your boarding pass printed also. Even $10 would be a whole lot cheaper than shuttles, taxis, and towncars we all previously used. Don't know if this helps, but thought I would share what I found out.