Years of anti smoking campaigns sealed that deal.
There's no doubt the fear mongering, ridicule, designated areas, etc. along with taxes got rid of a lot of smokers but the hard core that was left - most of the people on this forum (and others of course) - were that 22-25% who simply weren't going to quit smoking. So at least that could be 'relied upon' by the states. However, ecigs have cut into even the hard core and that basically was my point on how the money from MSA will eventually evaporate. Killing vaping is about the only good choice of keeping that steady stream of money coming in.
That said, the same Democrat Senators that have been writing the FDA and OMB to hurry up with the final rule, also put forward the idea (Dec. 2014?) of including ecigs in the MSA, perhaps after seeing the House Bill 2058 to change the grandfather date.