Imagine there were no pricelist, and herbs were selling at one gold.
There's something important here. The herb sellers are still profiting!
They pay nothing for the herbs, so unless they give them away, they
profit. You say no set pricelist would drive them down.. yes. That's
right. And so the guy who sells cheapest'll sell most.. it's called
capitalism, and it works.

Penned by my hand on the 12th of Ultio, in the year 413 AD.