Originally Posted by francophile

As mentioned here:

"Lufthansa found that passengers put a lower value on having direct access to the aisle than on having a longer, flat bed. The suggestion was surprising. Many airlines like Singapore and Etihad Airways have made aisle access a big selling point — meaning passengers sitting by a window would not have to climb over someone else to get out. But for Lufthansa, bucking this industry trend meant it could fit more seats in a row — six as opposed to just four."

http://www.nytimes.com/2013/08/04/bu...pagewanted=all