Originally Posted by
BarneyMcGrew
Just as an aside though, it may work out cheaper to buy your duty free items in the duty free at JFK rather than onboard unless it is something only available through BA Hi-Life.
That is particularly true for cigarettes. 44$ versus 50£+ on my usual carton. Even with 5x Avios (3x through BAPP, 2x through BAEC) it's not worth it -- for now.