Studies ^^Legalization of Alcohol did lead to increased usage.
You have to compare cannabis to alcohol. After Alcohol was legalized and free markets took over, prices dropped, supplies rose, marketing was implemented and its use increased exponentially. It led to the creation of some of the largest corporations in the country and drinking as a national pastime. Why would pot be any different? Common sense says it wouldn't. Unless of course it was regulated to the point where bootlegging and smuggling would be profitable and then we would be right back where we started.
The tobacco market is saturated at this point in time. In the early stages of legal pot there will be opportunity to make some money. As for knowing what I'm doing. I do know some people that are experts and it isn't rocket science.
I do believe pot should be legalized, but I do not believe it will solve any problems and may lead to new problems, just like alcohol.