The bus also has more seats (if they could fill them).
I've always been curious as to why they decided to fit 156 seats on the 319. I have very rarely seen loads over 150. For the six extra (more often than not empty) seats, they need to carry an extra cabin crew member which may not cost much should the seats be filled, but is otherwise not required. They've sacrificed galley space by moving the lavatory to the back wall to allow the installation of the extra seats etc. If the seats were removed I would have thought the company would save money. (A controversial solution, perhaps, as it would obviously result in a lower required crew headcount.)
Any thoughts, anyone?