I remember about ten years back, hemp was the "new big thing" in the local farming industry. There were a bunch of farmers around here growing it.
Then they had to deal with dumb kids trying to sneak into their fields and smoke it.
Then they discovered that it was especially hard on their harvesting machines.
Then they discovered that there wasn't much of a market for it, I suppose, because after that one year, I never saw another hemp field again.