Why the vending machine without suffering from cold factory?

Twenty vending machine has appeared in the island city street time, the citizens to accept the new self-service way? For days, the reporter is on the third (the place such as developed, hisense plaza, shopping malls to understand, the abroad has been widely accepted form of self-service, in weapons but send cold face bore. In the developed malls the fifth floor, a vending machine ( Drink machines) Already set up more than a month, according to market a shop assistant, there are few customers to use the machine to buy drinks, only occasional department employees to buy a can of drink out of curiosity. The vending machine in the three department (under the same customer. According to the analysis, the vending machine 'cold', on the one hand is the service way just appear soon, people have an understanding of them familiar with the process. But more important reason is that the vending machine have sold goods variety is less, the price is more expensive than to sell on the market. 5 yuan/cans, and sells on the market less than 2 yuan/pot; 5 yuan/cans. Why the vending machine sales of goods more expensive than in the market? 50 yuan for a monetary base unit, and is generally higher than the market price six or seven horns can drink. So in addition to the necessity, who will spend the money?