Advertising products at the point-of-sale at convenience stores increases "impulse buys" and makes tobacco seem like a part of everyday life. Which is probably why Big Tobacco spends 95% of its $9.1 billion yearly budget here.
Center for Public Health Systems Science. Point-of-Sale Report to the Nation: The Tobacco Retail and Policy Landscape. St. Louis, MO: Center for Public Health Systems Science at the Brown School at Washington University in St. Louis and the National Cancer Institute, State and Community Tobacco Control Research Initative, 2014. http://publichealthlawcenter.org/sites/default /files/resources/WaU-guide-POS-policy-report-2015.pdf