legal "cartel" loses volume advantage, exploits diminishing value advantage
AP analysis [not really]: Legal pot for all takes a toll on ["]medical marijuana["] users producers

When states legalize pot for all adults, long-standing ["]medical marijuana["] take a big hit, in some cases losing more than half their registered patients [MARKET SHARE] in just a few years
[...]
Robin Beverett, a 47-year-old disabled Army veteran, said she resumed taking a powerful prescription mood stabilizer to control her anxiety and PTSD when the cost of her ["]medical marijuana["] nearly tripled after California began general sales [sic].

CA Bureau of Cannabis Control reclassifies controlled drugs schedule, retail licenses

States see a "massive exodus" of ["]medical marijuana["] buyers when they legalize marijuana for all adults -- and then, in many cases, the remaining ones struggle, said David Mangone, director of government affairs for Americans for Safe Access.

["]medical marijuana["] producer pricing power, buyers agitate states for supply increase

["]Medical marijuana["] cardholders, for example, used to buy gummies or chocolate bars infused with 400 mg of THC, marijuana's high-inducing element. Now, edibles are capped at 100 mg for ["]medical marijuana["] buyers but cost the same or more. "Who, with any medical condition, needs to be eating 20 pieces of candy a day?" asked Erich Berkovitz, Oregon's last remaining state-licensed medical marijuana processor.

unknown market boundaries, prevailing prices, substitutability, profit margins, clinical controls

Getting a precise nationwide count of ["]medical marijuana["] buyers is impossible because California, Washington, and Maine don't keep data.

Diversity is the key to economic and political evolution.