A cafe near the Opera metro station in Paris named Footsie (a play on words on FTSE, the London stock exchange) has screens above their bar with the prices of their drinks. The clever thing about this place is that the screen refreshes every four minutes, and the prices go up and down, depending on demand. Customers at the bar are gazing at the screens looking for bargains.
The screen contains five lists of drinks that are on offer: draft beers, bottled drinks, soft drinks, liquors and aperitifs. When someone buys a bottle of Heineken, for instance, the price of Heineken in the ‘bottled drinks’ section goes up, and one or more of the other ones in the same section go down. A ‘countdown’ clock at the top of the screen counts down from 240 seconds until the screen is refreshed.
What a clever idea. 😀