The most obvious reason for the reevaluation is the decreased demand for print media as consumers increasingly turn to digital sources. Tohan also cited warehousing and delivery costs for shrinking the convenience store distribution network. [...] Meanwhile, 7-Eleven, Japan's largest convenience store chain with over 21,000 branches, says it has no current plan to scale back magazine availability, saying that as readers today have fewer places where they can buy print media, it's become even more significant that the chain provides such products.