Kentucky has been pushing it for a long time and is behind the legislation to allow the growing of hemp by the feds.
I looked into it when we were looking at some land in Colorado and it appears to be a low input low margin crop that has demand covered by low cost producers around the world who have infrastructure already in place.
 My guess is it will  niche crop for the the locally grown types. Not a chance it will be grown on 10K land unless it is a biofuel at some point.
  http://www2.ca.uky.edu/cmspubsclass/files/EconomicConsiderationsforGrowingIndustrialHemp.pdf