While Colorado and Washington are among the jurisdictions spearheading the global trend towards legalization of recreational Cannabis (marijuana), Canada lags behind in the regulatory process - but not in Cannabis consumption. An empirical study conducted in downtown Toronto, as well as studies done by Statistics Canada, reveal that Cannabis use is widespread among Canadians, which indicates that the current regulatory regime is not effective as a deterrent.This paper details the results of the above-mentioned empirical study, reviews the regulatory framework of recreational Cannabis use in Colorado, Washington and Canada, and uses taxation data from Colorado to estimate the potential financial gain of cannabis legalization in Canada. The paper concludes with a brief discussion of the non-financial benefits of legalization