Here's some white paper on the cost of cultivation and production of MJ. Hope this gives some insight on the cost. http://nexuscann.com/files/Greenhouse%20vs%20Indoor%20Cannabis%20Cultivation.pdf http://lcb.wa.gov/publications/Marijuana/BOTEC%20reports/5c_Economies_Scale_Production_Cannabis_Oct-22-2013.pdf https://www.google.com/search?q=the+construction+of+a+cannabis+facility+from+paper+to+production&ie=utf-8&oe=utf-8&client=firefox-b https://www.medicaljane.com/category/cannabis-classroom/#safety-and-efficacy