When you buy a pouch of tobacco, it is either 50 GRAMS or 30 GRAMS. Milligrams are teensy. You do not want to be paying 30 bucks for 50 milligrams - That is 1% of what I'm actually giving you. It's about 3 little flakes of leaf. So get it bloody right, before I refuse to sell to stupid people like you.
On the other hand, I'll give you even more, so you'll die of lung cancer faster and raise up a little bit the average intelligence of humanity as a whole.