Big
tobacco are not stupid they know the future in the developed world is in
devices like ecigarettes and many of the larger company's already have departments working on future products and they are not all
cigalikes 
. They will continue to sell stinkies in the developing world creating another market base there to continue the revenue stream they are used too but have no doubt BT is on our side in this but unlike us they realise politics and government departments don't change quickly and never without a little help. Vapings biggest enemy is big pharma they stand to lose billions if ecigs are favoured as a smoking cessation or even harm reduction product over their massively overpriced NRT products and they will be lobbying long and hard to keep ecigs down. In the UK thankfully despite what some think big pharma is not having too great an impact thanks to decades of anti smoking and most UK politicians want a lot more information and study before making a final decision. It's a shame that politicians in the US are not as fond of freedom as they are of talking about it and allowed the people to make the informed choice.
its important to note that England didn't have the master tobacco settlement
bringing in scads of extra money to lose. most states not only tax tobacco
by the pack they have the additional settlement money to boot.
that's 2 very nice revenue streams to protect.
with it becoming more clearer the relative safety of e-cigarettes
are compared to smoking and ever increasing usage of the new
technology is the reason we are seeing this near hysterical drive
in many states to get regulation and excessive taxation rammed
through while most of the cats are still in the bag.

regards
mike