No. But I see little reason to spend so much money trying to suppress it. I see little reason to spend money trying to suppress tobacco. Tax it as high as you can without forcing it into the black market, and leave it at that.
I couldn't care less either way. What I do know is that if weed is illegal it drives up the cost and we have to pay for the law enforcement. That sucks. If tobacco is legal and people get lung cancer, I have to pay for it through my crappy medical plan I have to have for the one time every decade my thin, relatively healthy 26 year old body gets ill. That sucks too.
We're screwed either way. You can't just legalize weed and expect the cash to flow. Taxes are crap no matter what, even if you don't participate in the taxed product's use.