When anyone with a back yard, porch, patio, or bay window, can
get a couple five gallon buckets and grow their own stash of
whatever particular strain they fancy the price of smokeweed will
drop substantially. This isn’t like growing your own tobacco, or
brewing your own beer, it’s easier than growing decent tomatoes.
Frankly I doubt you’ll see anything larger than farmer’s market
scale commercial development.
Hemp, on the other hand, would be production on the industrial
scale – with standards and grading to match.