Each year GoEuro, a European Travel Site, publishes a Beer Price Index, which compares several beers in stores and bars across 75 cities in terms of price. The cheapest beer can be found in Krakow with an average price (between supermarket and in a bar) of $1.66. The most expensive is Geneva at $6.32 (with bar prices averaging a whopping $10.77!)
But if you go to Cairo (yes it is on the continent of Africa) you will find the 11th cheapest beer at $2.11 (tied with Bangkok) and Cape Town ranked 12th at $2.14.
I do wonder if they even look at Kigali or Dar Es Salaam or Nairobi in their survey because beer is cheap there. And more importantly delicious. Anyone up for a Tusker or a Kilimanjaro? They taste great after a day in the bush!