Good points well made.
However I disagree about the unreplicatable thing.
I mean, I'm struggling to think of anything that is unreplicatable...
Just look at LCCs. It's a brilliant idea, did the guy who invented it well-ish (Can't remember his name at this second) and it's done Ryanair, Ezy and many other LCCs really well.
So I don't neccessarily agree with that, but granted, it would be nice.
As for why it's never been done before? I am struggling with that one. I have presented this to a few training captains, ex-pilots and instructors and they all think it's a great idea that they've never heard of being attempted before.
During my research I have come accross a Boeing Start-up help team, I was finish completing my business plan and forward it to them. I guess at that stage I will find out if it has ever been attempted before!