as for trying to project where we'll be sitting with all of this after 2016, a lot depends on how the next president will handle the situation. no doubt some of them might come in guns blazing to shut down both the medical and recreational pot industries, and with pot still Sched I (no recognized medical purpose) according to federal law, the Justice Dept. should be able to get an injunction to shut down every pot distributor in the country almost immediately if they so desire.
I assume a question along these lines will be asked during the GOP primary debates. Should be some fun answers!