content: Anymore? When was it standard? I'm not certain that weight is the issue, and I think you might misunderestimate (thanks, GWB!) the payouts of a crash: two payouts basically sunk Malaysia.  I've seen a proposal for separable cabins to improve boarding/taxiing times. I could see this idea working in tandem with that, but I'm not convinced of the utility. Airlines will increase their prices to whatever the market will bear.