Restaurants use various tricks to manipulate us into choosing their establishment rather than another, such as the careful use of photography. The colors, even the tone, used has an effect on us. Red, for instance, can make us hungrier. Obviously, the photograph should display food beautifully arranged to titillate our appetite. Inside the restaurant, the menu has a further effect.
Note how often someone will say, Mm nice menu, meaning they were attracted by the verbal description. Plain names, beans on toast, egg and chips, fish pie, is honest but is more suited to the busy truck driver. A smidgeon of rare saffron floated over a choice cut of best salmon is much more likely to manipulate us into believing the dish will be good. One very expensive item may divert us from recognizing that their cheapest item is over-priced for what it is.