WIY
At $50-60 a gram for cocaine, price really isnt the issue for an addict. They beg, cheat, steal if need be in order to get their next fix. (I realize a hard drugs are more severe than nicotine)
I dont think any parent is giving their teenage son money for cigarettes. Most likely they pool their cash a split a pack. I highly doubt a teenage kid has a pack-a-day habit.