Biggest threat to vaping community is this:  by virtue of FSPTCA the FDA has the authority to regulate the amount of nicotine in tobacco products.  So, BT gets into the business and voluntarily agrees to some irrational and/or arbitrary limit, i.e. 4 mg, 6 mg.  (Keep in mind that OTC NRT products- patches, gums, lozenges, have arbitrary 4mg limits.)  BT then has a cigarette alternative in certain environments, but not a cessation product that would radically cannibalize sales in places where smoking is still permitted/tolerated.  BP then gets into the act, introducing products that have far higher percentages of nicotine- but are available only by prescription and as part of a step down smoking cessation therapy.  That way the FDA hits a home run with groups it has identified a key stakeholders:  BT, BP, public heath, tobacco control.  Just sayin' . . .