The attention to the coffee of the convenience store in Japan

Currently, the Japanese convenience store offers a coffee of high quality in the $ 1 or less. Since the start of full-scale service from the largest of Seven-Eleven convenience stores in 2013, other convenience store also began a similar service.
Why the high quality of the coffee can be provided to low price? The answer is as follows. Convenience store chain has a number of stores. It is possible to mass-sold, they are able to purchase cheap quality coffee beans. Also, because the customers who come to drink coffee is willing to the other shopping, shop side is all right even if the low profit margins.
Now Japan became the rare countries that drink a full-fledged coffee at $ 1 or less.
If you come to Japan, please try to taste the coffee in the convenience store.