> Other buff sellers kept selling them at the going rate … so I did the rounds of the cities each night and bought up any HQ buffs which were under my price and added them to my stockpile.
As well as high barriers to entry:
> Buffs could only be made by the ‘doctor’ class and only by the top level doctors.
Basically there is massive demand for buffs, but the supply is restricted by the avian meat availability. Thus a huge demand for avian meat with low supply. The price should go up, and this guy brought the market price in line by outbidding everyone else.
He corners the market, and like any cornerer, he has to overbid the "market price" to shut everyone else out. Now he is in a weak and vulnerable position, to any of his competition. He has a large supply of capital goods that he overpaid for.
The overbidding for avian meat should induce more "mining" (hunting) of the avian meat -- it should be wildly profitable relative to effort invested. This should tend to raise supply, making the overbidding market cornerer's job even harder.
Anyone with half a brain should mine some avian meat and then offer to sell it for (pinky to lower lip) 1 billion dollars (or whatever). The market cornerer will either pay the asking price or relinquish some control of the market.
Since there is no monopoly on buff producers (per the anecdote), the meat miner can lower the price until it sells to a buff producer (whether the cornerer or not). The miner extracts the profit, and the buff producer, with such high input costs, should have smaller margins on the finished product.