And with airfares specials very low, we will see more of this. I have just had to change a domestic airfare and could simply book a new ticket online for $59 whereas I phone call to Air NZ to change the old ticket would have cost $50 service fee. So my previous booking is still active and I have no intention of using it. Airlines simply have to overbook to take advantage of this situation but as you point out 777, how they do it is paramount to how the customers feel about it