In my experience, as long as you select the right seeds/strain (feminized seeds are readily available) and harvest in time, you won't have "low grade crap weed"(obviously that description is subjective) but a very marketable product. Yeild is more difficult to optimize for.
Since other people are comparing rudimentary horticulture to consumable alcohol production for some reason, making market grade alcohol is not nearly as simple. Aside from maybe some parts of West Virginia, basement hooch is not in high demand.
