A big part of why they have a monopoly is because these are large, multistate corporations greasing the palms of politicians so they can keep out mom and pop dispensaries. There's NO good reason for there to be only what, 1-2 independent sellers in the entire state.

Supply and demand applies, sure, but when the market is completely closed, there is no way for competition to help meet demand at affordable prices. If you look at other industries with monopolies, you can see how this will play out. We pay way too much for internet and cable why? Monopolies.