The majority of Canadians are not going to care and will not use it even when legal - around 30%  will use once legal. 
Smoking it will not be popular given the health drawbacks and the strict smoking laws. 
So, editbles will likely be the main way pot users ingest it, which means the food laws will apply to the making of these editbles.  That means access to a gov't health-inspected kitchen. It's going to weed out a lot of the current producers.
I doubt it will be the cash-cow the Gov't says it will.