I believe you will find he says Lab grown weed...like the most high end managed indoor grown under lights in climate control would be around 30 bucks an ounce cost...add in profit and it would be 60/ounce. Don't know what they would tax it another 40% So $100/oz for the finest flowers on the planet?
Probably a good starting point and I would bet once the free market was allowed to operate people would find even cheaper ways to get the really high end buds.
Now open it up to out door row crop and the price falls through the floor. Might not e High High end, but it would certainly put pressure on the indoor labs.