I believe investment in the area would do well when it comes to equipment manufacturers. As far as e-liquid, hard to say what will happen there, but my guess is it will involve pharmaceutical companies. Someone will be given oversight on e-liquid eventually. Eventually pharmaceutical companies could end up controlling the nicotene e-liquid market if they manage to get nicotene re-classified as a stimulant, so unlike equipment manufacturers, there probably won't be any investing on the ground floor for e-liquid producers (at least, none that will succeed). Dig a little deeper if that happens, because their new tax cash cow is in the barn ready for the milking.