The problem with that analogy is the product being offered is the same unlike the NHL vs the AHL vs the ECHL. Yes you have to claw your way up but everyone is now captain qualified or will be after there next pc and if you don't pass you're terminated with a failure on your record you'll never fly 121 again because of the Colgan accident. What I mean is whether its a 37 (dash8 100) seater or a 580 (airbus a380) seater you have the same responsibilities and in the the 37 seater there is less automation so it's a more work less pay scenario compare to the 580 seater.