I was at the Megamart in Montego couple of weeks ago and bought beer, wine and couple of spirits. American wine was very expensive..2-3 times more then US but Argentinian and Chilean was very reasonable. The US hard liquor brands I found to be expensive..Grey Goose vodka..Sapphire Gin ect..at least double of US pricing. Not a bad idea to check out duty free from your last airport leg to Jamaica or the duty free at the airport when you come to MBJ which is somewhat limited tho..