Expect a lot of things to be legalized in the years to come as the desperation for more tax revenues continues unabated.
I would think that the $72B they say it will raise over ten years will be (at least partially) negated by an increased need for social services. I also think it can be a very regressive "tax" on the desperate dreams of the poor (see also the lottery).
Not saying I'm against it, but there are certainly some concerns I have with it.
"Hey, for every ten dollars, that's another hour that I have to be in the work place. That's an hour of my life. And my life is a very finite thing. I have only 'x' number of hours left before I'm dead. So how do I want to use these hours of my life? Do I want to use them just spending it on more crap and more stuff, or do I want to start getting a handle on it and using my life more intelligently?" -- Joe Dominguez (1938 - 1997)