Good points, Sawin. I think if Colorado were to be first to decriminalize it, the novelty would wear off pretty quickly and other States would follow soon. There may be a slight increase in the influx of new residents, but I don't think it would be significant. I'd be shocked if a large number of people actually moved to a different State just to smoke pot. I'd think most people who can afford to just move to a different State on a whim base such life decisions on more important factors than just whether or not they can get high legally. One can easily find weed in any State; no need to move for it.

I'm not sure I follow you on the "Blue State" speculation. What makes you think all stoners are Democrats? From what I've seen, the Democratic party fully supports the war on drugs.