>but a stable legal market.
Like the stock market, stocks never change in price. Or gas prices at the pump, they stay stable for long periods of time, right?
You seem to be very confused how markets work. Some markets are real time priced markets and the price and inventory is expected to fluctuate moment to moment. Other markets are stabilized by huge amount of production and rarely fluctuate, such as the price of a candy bar at the local store. Weed is not a 'white' market, the feds still randomly bust suppliers, and at the federal level it is still illegal. Also customers have personal tastes, if everyone wants the strain *dank memes*, demand dictates that the price goes up, especially if supply is limited. Until you see a futures contracts for supply of marijuana there will be volatility in the market.