To be fair I've had a decent French white Burgundy in F which I'm guessing was £15-£20 in bond. 100 years ago (OK around 2000) I flew F LHR->BOG (stopping somewhere on the way) and was the only passenger in F. I quite liked the Premier Cru bordeaux so they gave me an unopened bottle for free. I think it was Chateau Palmer though my memory may be playing tricks. This no longer happens.