Berlin's cheap because it's located in the middle of former East Germany, which has cheaper rents than West Germany. Right, but the original comment claims is

Berlin's cheap because it's located in the middle of former East Germany, which has cheaper rents than West Germany. Right, but the original comment claims is cheaper even than most East European capitals, most of which were and still are in even worse economic shape than East Berlin. The other claim is that it's actually a great city, but you say that other cities probably have more economic opportunity which does explain why Berlin might be so cheap.