Shortly after Hurricane Hugo hit the island of St. Croix in 1990, you could buy a bottle of their island made rum for $1.99 while a gallon of milk was $6.00. The main store at that time (early 1990s) was a Woolworth's which frequently sold rum for $1.49 on sale.

Ironically, when I now visit the Caribbean, I always check the local grocery stores or discount stores (Walmart, Kmart, etc.) for their price of rum and booze in general because it is usually lower than liquor stores and they typically will throw in the bubble wrap holders and cardboard carriers.