It used to be that PX's (variously named throughout the services but basically on base department stores) used to carry tobacco items at a deep discount, if I remember. Now I'm not sure if they carry tobacco products, but our military people and retirees might enlighten us. For starters, they got out of state sales tax, and they bought in quantities system-wide, for bases throughout the U.S. and the world, so had a big advantage. I'd be amazed if you can get a Dr. Grabow or MM cob at a PX these days, but maybe....