US Airways eliminates movies because equipment is too heavy (500 lbs) and wastes jet fuel; should we charge overweight passengers instead?

Yes, it's true. US Air says no more movies because the in flight entertainment system weighs 500 pounds and they're trying to cut the weight of their planes any way they can, to save fuel.

But what about 500 pound passengers? Why not add a surcharge to anyone over, say, 300 pounds, and give discounts to skinny people?  Some corporations are now charging more for healthcare premiums if an employee is obese. Maybe it would lead people to lose some weight. And then we could get movies back. Comments?