The other issue is that many of the "boom" prices are based on the spot market price, but the majority of these commodities are actually negotiated through long

The other issue is that many of the "boom" prices are based on the spot market price, but the majority of these commodities are actually negotiated through long term contracts that have a steadier income, but much fewer highs and lows. Which is why a multi-year drop can be especially hard for producers, since that's the price that often gets locked in for several seasons.