I live in a small town in Quebec, Canada and first off I would like to say a huge NO to the assertion that marijuana is legal here. Unless I imagined spending a night in the cell with the local homeless dude.

I can tell you that it is demand that drives the marijuana trade. Not one single dealer has to "push" his product. More often than not you hear the complaint "(*)(*)(*)(*) the town is dry man" and everyone starts fiending and calling everybody they know who has even mentioned pot. These potheads (and they are a very large portion of the population here) are not doing marijuana because its illegal, hell if it was legal there would be massive celebrations in the streets. We do pot cause it is the only thing that can make the conjugation of french verbes the most hilarious thing since the word pickleweasle.

In all seriousness marijuana is in a totally different league from chemicals (as we call anything stronger than pot). It is a completely different market of user and I don't forsee any huge spike in ecstasy consumption if pot is legalised.