There are over 43,000 konbini (or convenience stores) across Japan with over a billion monthly visitors. Daily-packaged lunches and other foods like the ones seen above, make up about 35% of sales (or about 230 billion yen) The average cost of items I purchased were about 400 yen. I can therefore extrapolate that in a single month customers purchased about 570 million items like the ones seen above. I love konbini bento and I wish they had them in the States but, for the sake of the planet, I’m glad they don’t.
*data source (PDF)