Why do people have a problem with being charged more for using more services?  Wouldn't a college kid flying home for the weekend with only a backpack like to pay less than somebody taking a two week trip with three large suitcases?<p>Let's presume that the airlines will price in a profit optimizing way and that, in the long term, competition will limit their overall take.  So, compared to a model where all passengers pay an all-inclusive fee, those using fewer services will pay less under the a-la-carte plan.<p>We don't think that hotels should be required to include dinner in the cost of the room, but we get mad when the airline charges $5 for an in-flight meal.  We're happy to pay per-lb to ship stuff via UPS, but we don't want to pay per-lb for the bags we check?  I don't understand.