Totally agreed. But I think it's very difficult to know what would happen to cannabis prices after legalisation. For example, in Amsterdam it's very expensive to buy weed.
I have just created a new post because I think this is a very interesting subject, hope you guys want to participate!
https://steemit.com/marijuana/@fumeta/this-is-how-much-weed-you-can-buy-for-usd3-in-guatemala-what-about-your-country