I question this. Illegal pot costs lower than legal pot. Why would a non-wealthy user pay more when he/she can pay less?
Well, the same reason why liberals go for fair trade coffee, etc.
If people know the choices of their dollars make a difference, they frequently do choose according to those criteria.
Also, this is the first blush of a free market.
When the green eyeshade folks have a chance to get involved, prices could quickly shut out the illegal operations.
The illegal operations grow in quantity, the legal indoor operations due to state production limits grow for quality.