While I was in Vietnam the price of cigarettes at the PX went from $1.70 to $1.90 per carton (10 packs), tax-free prices. I thought there would be a mutiny!
C-rations came with a 4-pack of cigarettes in every meal. Winstons, Marlboros, Kools, Chesterfields, Pall Malls, Camels, something for everyone's tastes.
Beer was $2.40 per case at the Class 6 stores, if you could get to a rear area base camp. Ration card limit of 4 cases per month (or 4 quarts of liquor at about $1.90 each, tax-free). The really big problem was getting COLD BEER, with no refrigeration, no ice. Best solution I found was a nearby Marine air base with repair facilities, usually a F-4 or two coming out of maintenance and needing a flight test, so we hauled a few cases over, strapped them into the navigator seat, pilot took the plane up for a half-hour or so at 30,000 feet or more, and we split the cold beer with the Marines. I heard that operating costs for a F-4 fighter-bomber were about $3000 per hour, so I want to express my gratitude to all you taxpayers for my chilled 10-cent beers.