Suppose you are selling weed. Good, high quality weed, and your buyer says I will pay you $0.05 an ounce? Now what? You have to sell it to him at his offered price, right? I mean, that IS how competitive markets work, right?
Is it possible that the market sets the value of your weed, and you might be able to sell it for $400.00 per ounce or $1200.00?
Suppose you have an ounce of sand in your bag and your customer sees that you are selling him dirt instead of high quality weed. He HAS to pay you $1200.00 for your ounce of dirt, right?