stores that sell cigarette cases Personalized Quality Metal Storage Case 2.5L x 1.2 W x 4.25 H (approx)Pocket on side for lighter Belt attachment Cigarette Display Holder, Wall Mounted

Study says yes

Theres nothing else that could make them as much money as contraband tobacco. In a statement to CTV News, an RCMP spokesperson said its federal police work closely with domestic and international partners to disrupt the illicit market, including through the gathering of intelligence and enforcement activities

They distributed packs of 25 and 20 cigarettes in two groups and found that people with packs of 25 cigarettes smoked a 1.3% higher number of cigarettes in a day

As research would have it, they were able to demonstrate this effect to a degree, which was published in the European Journal of Pharmacology

1998;63:PL1259