RE:Republican-Led Bill To Legalize And Tax Marijuana Emerges The big issues with the Canadian big cannabis companies are obviously market share and profit margin.The cost to produce cannabis indoors in our climate is massive.The greenhouses consume huge amounts of energy to light heat and to cool in summer.Canadian sales have maxed out and the black market is never going away.These well developed businesses have 50 years of experience and expertise and a big market for people who want selection and free home delivery.If the US does legalize you can be certain that they will protect the home market and probably hugely tax and limit foreign companies from operating or selling into the home market.I was in TWEED 6 years ago and did well WEED should do well long term but we can only smoke it so fast.