Airlines Made $5.7 billion in Revenues in 2010 From Fees - ABC News

"If they hadn't collected that much money in bag fees, then there would probably be two airlines and they could charge whatever they wanted," George Hobica, founder of airfarewatchdog.com, told ABC News.

"Airfares today remain an unmatched bargain -- in real terms when adjusted for inflation, it still costs far less to fly, even with ancillary fees included, than it did during the 1970s," the ATA said in a statement released today.