Is the excitement in regards to ganja being a potential 'new' money-maker or is it for personal-consumption?
My experience and understanding of 'local' Thai people (my neck of the woods) over the years is that 'fire-water' and amphetamine (younger-crowd) is about as wide as the intoxication pendulum swings.
I've never been asked to 'score' nor have I ever seen any Thai smoking. Ya, of course my circle isn't very wide, but you'd think after 15yrs here I'd come upon it at some point, since I do partake myself.. My overall impression is that this has always been a country of alcoholics .