Except you're requiring someone to choose to not make money today in order to maybe make more money tomorrow. If the seller thinks scarcity will rise tomorrow,

Except you're requiring someone to choose to not make money today in order to maybe make more money tomorrow. If the seller thinks scarcity will rise tomorrow, they'll just raise prices today. Capitalist markets are traditionally both selfish and short-sighted. Market limits are how black markets are created. Eventually the market demands will raise prices high enough to incentivize illegal activity. See: elephants, rhinos, whales, etc.