Airlines may consider these optional, but who goes on bvacation/b without luggage? And who spends a few hours on a plane without asking for a cup of water? The airline industry believes these fees have no place in a price quote. ... That's what Eric bHochstein/b, an economic consultant from Barrington, Ill., discovered when he bought tickets from Chicago to Miami recently. Later that day, the fare dropped by $15, but a closer look at the fare breakdown revealed that the taxes ...