yeah i've heard that too but how much is it small growers like us and how much is it commercial growers? I mean because it grows anywhere and everywhere, and there's lots of open space in the US, I would imagine that it would be a appealing to commercial growers because it can grow in secluded (less then ideal) areas and not have to go through customs.
On the other can because it can grow anywhere and everywhere, anyone can grow it so....i'm not sure