I will let you in to a secret...
We buy BA AirMiles at work and give them as Motivation/Incentive Awards.
They cost us 9 pence (sterling) per mile.
[Sorry US Exec Club members, but I have to use UK AirMiles here]
A UK to US return (East Coast) destination is 2,900 miles (economy); 5,800 (business/club); 8,700 (First); 27,200 (concorde).
Therefore, by buying AirMiles:
Economy = £ 261 (US$ 430)
Business Club = £ 522 (US$ 861)
First = £ 783 (US$ 1291)
Concorde = £ 2,448 (US$4039)
WOW!
I pay over £ 3500 for an economy and over £ 5000 for a first!!
MF