Why didn't 3x4x2 seating take off?
For 9 abreast aircraft (sadly, the 787, and hopefully for a while longer, the 777), a 3x3x3 coach configuration have been the standard - certainly for all new 787 deliveries, and for most 777s since about 2000 (2x5x2 was the first configuration in the 90s). However, why have so few airlines adopted the 3x4x2 configuration for 9 abreast planes? It seems like such a great layout, with pairs for couples, 4-across in the center where everyone is one seat away from the aisle, and only one "double excuse me" with the 3-bench window seat. Any reason why most airlines chose 3x3x3 over 3x4x2?