"New York-Los Angeles is both the busiest long-haul U.S. route, with about 3.2 million passengers a year, and the most lucrative, with $1.43 billion in annual sales, according to the Bureau of Transportation Statistics. A premium-cabin ticket can cost 10 times more than one in coach—but passengers do get plenty of pampering. At American, concierge employees greet first-class fliers at curbside and whisk them to a special transcontinental check-in room. They’re then taken to the front of the security line and the Flagship Lounge, a private facility within American’s Admirals Clubs." http://www.businessweek.com/articles/2013-05-30/airlines-fight-for-first-and-business-class-passengers