Bought a carton of PM's online... seemed ok at first but my lungs and sinuses took a beating by about the 4th pack, something funky about them.  Burns too quickly too (they were shipped from overseas I'm not sure maybe they are different from PM's bought in the USA).  If you want an awesome strong cigarette at a super cheap-o price try ordering a carton of Bronco.  They are made in Columbia but have a strong American taste... I dunno if the cartels down there are packin' coca leaves in with the blend but I smoke half of one of them and I feel completely satisfied and downright pleasant.