Interesting points, i feel the cannabis industry is about to explode in the US. US cities are already holding public Q&A meetings about full legalization. Without diving into detail It's simply a matter of time at this point. With the banks help or not, the majority of the current currency used in this lucrative business is cash.
Now as for crypto-currency i feel it is a still a bit ahead of its time, but growing! There's just currently an inflation of crypto-currencies that exist and i feel a lot of them won't last. Kanye West has his own crypto-currency for gods sake! Now being an investor of both fields myself, i am optimistic! I think once all the fad alt-coins dissipate and allow for the stronger more established crypto-currencies to flourish is when we may see more opportunities for cannabis and crypto-currency to potnerup! (sorry bad pun)
The Cannabis industry is going to explode in the next year. Canada will start to legalize in 2018... I had no clue until recently that potcoin existed as well as steemit. But having a decentralized form of so called money system is imperative at this time period. The world must get away from accounting practices.