The proposed rules has it that if there's a dispensary within 25 miles, you MUST buy from a dispensary (not necessarily the closest one, but still), and you can NOT grow your own. So, it screws over anyone who's sick because then they need to buy weed at $300/oz or whatever, rather than growing your own. Worse, there's no way to be certain of which pesticides and chemicals that may have been used on it.
Thank the Arizona Medical Marijuana Policy Project for inserting that little bit into Prop 203. They want their little monopoly system, rather than to actually help people.