Teens need medication and most often do not have enough money to five billion dollars. He then sold in an affordable price. If he sells expensive, no teenagers who need it.
Teens who want potions, most often without enough money to five billion dollars. They sell them cheap if they sell the more expensive it will be no teenager would want it.
Teenagers who want to love most often there is not enough money to five billion dollars. He sold inexpensive prices. If he sold in expensive will no teenagers need it.