Hmm, interesting question. The impulse answer would seem to be that more people would use marijuana because of its legal status. This would seem to be confirmed by the numbers coming out of Colorado in regards to college students where it is claimed that the numbers have climbed drastically. But is all what it seems to be on the surface when we dig a bit deeper? Are there in fact an increased number of users, or are the users simply more open about the usage since it is now legal?<quoted text>
I do have to call you out on a bit of the above commentary...
Specifically regarding the legalisation of pot. Do you really think legalisation will increase usage? If so, you really ought to take a long hard look at prohibition and what it did, or rather didn't do, for alcohol consumption. Oh, you can look at what it did for organised crime if you want, as that was a magnificant failure for progress.
Now I don't agree completely with your analogy to prohibition of alcohol, I don't think the law lead to an increase in usage, it simply didn't result in a decrease. And there is certainly no doubt that organized crime received a boost thanks to the Amendment.