I don't understand the airlines position on this. They want the Business and GA comunity to pay for more of the system that airlines actually require. But, the cost of that system is paid for through seat and ticket taxes that they pass through to the passengers anyway. So, do they think if ticket prices are lower there will be more passengers? I don't see the airlines pocketing any money. The airlines won't keep ticket prices the same an pocket the tax. They will, most likely, drop the ticket price and start another damaging price war.
Even if they get a user fee system and if they get it rigged so that GA picks up a big slice, I don't think they will be any better off. They will mearly use any cost savings to beat the hell out of each other. I believe that ATC cost are minimal compared to fuel, equipment and salaries that the airlines pay. I don't understand why the airlines think taking control of the ATC systems will help them?
Whenever I see these privitazation schemes it's always about how some private company is going to try and steal a government run agency so they profiteer and rape the public (ala Enron.) I can understand this administration trying to sell off the government to the highest bidder; that's been W's MO from day one, but I don't know why the airlines want to do it. They have so little to gain.