Interesting discussion for sure. The TSA fee had me thinking. Since 100% of tickets sold incur the fee, even miles tickets, but we know not 100% of tickets are actually flown, the TSA essentially gets a windfall anytime someone doesn't show or cancels thier flight.
Then again I also thought it was interesting how in the Govt shutdown they couldn't pay the TSA agents, but they sure as heck kept collecting the TSA fees for each ticket...