I don't know if Midway had them or not, but I believe Air Tran has a deal with quite a few cities to fly there at no risk. The city simply guarantees a minumum amount of tickets sold - the benefit being to the business community of airfares plummeting by over 50%. Considering that traffic here at PNS has risen by 33% since AirTran arrived and dropped by about 15% at the neighboring 3 airports, I would think that many smaller cities would love to support a LCC. It is from this that I hope ACA can get a guaranteed revenue stream. Maybe one of the Air Tran guys can tell us the nuts and bolts of how it works for them.