Correct, and adults in CO and medical mj patients in CA are allowed to grow six plants at a time indoors. As you say, that's plenty to keep them stoned for a year. Yet, enough of them choose to pay at least $300 an ounce to generate $1B in sales.
You just don’t get it do you? It isn’t totally legal for everyone to grow and sell, if it was nobody would be paying much for it.
There are about the same number of tomatoes harvested from one plant as there are ounces of pot on a pot plant.
Do you know anyone that would pay $200 for a tomato? At even $20 per tomato people would all start growing them.
Make pot totally legal and unregulated and an ounce would be worth less than $5.