US beer is expensive, brands like the local Balashi and SA beers Polar and Presidente are much cheaper. I'm not a big fan of US mass produced lagers, what my German friend calls "Kentucky horse pi**" and think these local brands hold up well to them at a lesser price. Local rum is cheap, often a bit rough but drinkable when mixed with whatever. SA wines are a good buy mostly imo with the occasional bad bottle with the less than ideal storage conditions. Booze holds it's own with the higher end US states prices, in the big picture I wouldn't spend too much time on this, better off looking for 2 for 1's, happy hour deals, sales, etc to pinch a penny.