In the back of the Berliner Republik bar on the banks of the river Spree, Matt, Otto and Christian’s eyes are fixed on a screen in front of them. The names and prices of 18 German draught beers flash up, bright green on a black background, and change every few seconds, according to who has ordered what.
It’s a pub game for the modern age, based on supply and demand. The trick is to buy the beer cheaply and then give yourself a pat on the back when demand pushes the price up.
http://www.guardian.co.uk/world/2010/may/23/euro-crisis-dispatch-berlin-mark