it's amusing to see you all squabble over airline economics and big vs small. For any budding airline moguls out there I play a superb little airline simulator at
AirwaySim Airline Game - Online Airline Management Simulation. It's fantastically realistically changing fuel, airplane models and route demand as time goes by...
I've no financial interest in the gane, just really enjoy playing it even though I do normally go bankrupt against far better players..
G