They will never eradicate the black market due to noncompetitive pricing. I maintain a home in C.T.,I have a medical marijuana card and my home is 15 minutes from the nearest Mass. recreational store. I don't bother with going to either place most of the time due to the outrageous prices. That said,despite the 30-100% higher prices both the medical and recreational businesses that I have been to are doing incredible business,full parking lots at both.I am a supporter of legalization, however, many of the states in the US that legalized placed very low thc limits on their products.
Be nicer to have a twofer and get a double benefit with thc levels equal to what is available everywhere..
Other issue is the sky high prices the state stores charge.
If the state is going into the reefer biz they need to be competitive since there is lots of competition.