See the traditional full fare pax habit eroding. Not too many people seem to be willing to fight for seat 1A to prove how important they are anymore while they can sometimes have more space backwards (like an empty row of eco seats). Full fare privileges have become too costly today. And one pays a fortune for a parking lot on some major airports these days. . .Will be a tough issue for the mainlines to compete in this new market without competing with their own traditional products.