I really don't understand the US and our boneheaded anti-drug policy. Think of all the missed tax revenue! To me, everything else is gravy.
Hell, if Merck and Pfizer (and others) owned the market for producing recreational quantities of cannabis, they'd be growth stocks again. Then add coke and heroin to the mix...that's a buying opportunity on pharmaceuticals right there.
Friggin' moralistic politicians.
Keep in mind there's been major growth in the abuse rates of oxycontin, vicodin and other opioid analgesics in the last few years as well. These things have similar metabolic pathways and affect similar parts of the brain and heroin and other narcotics. I guess no one recognizes those similarities.