Alot of people in europe/ UK roll with baccy. It's from the time when only hash was avaliable, and green wasnt so popular. Then when skunk came into the market people kept rolling with baccy. It does spread the weed out so it's lasts for longer, and the spliffs we roll in the UK are normally quite abit bigger than in the US [from what i've seen]

But i dont smoke baccy anymore, so its all pure weed for me.