"From what I hear, the feds have 150,000 acres to grow cannabis on, once they decide to lift the prohibition ... cigarette companies are prepared as well."-Absolute myth.
"It won't be an easy task to get 25+ states to legalize recreational use." True, but it needs to be 38 states, not 25.
The feds changing the marijuana schedule or legalizing is about the same odds of Ron Paul winning a presidential election in 2016.