You forgot the high property (real estate) taxes and the proposals to crank the income tax back up to 5%, as well as a generally stifling business environment...
I would think that fully legal weed = less productive citizens, more traffic accidents, etc., so, at best it’d financially be a wash.
“more traffic accidents”
http://www.freerepublic.com/focus/chat/3190602/posts - “Since marijuana legalization, highway fatalities in Colorado are at near-historic lows”