chivas 1 liter 12 yrs at BG Airport $47.NYC retail at $45+ tax. why shlepDelta on flight was $40 if I am not mistaken.if you can please post comparison of items you know recent cost for, it would become a helpful guide.
The real heaven of DF is for smokers.
BG 5-pack $192 (intl cigs) = $47 a cartonOn US/UA (maybe even DL, as its an American airline) it $37 a Carton (US Duty-Free)
IMHO there are very few things worth buying in Duty Free nowadays.