Thanks for sharing your thoughts here - great read!
I also truly believe that crypto is here to stay. Let it be called a boom-bust tool or a bubble, but as the currencies get broad adoption and thus decrease their volatility, they are only one use case of the underlying blockchain technology.
We will see much more development and new products in the near future around this technology. Just think of blockchain-based social media or blockchain-based contracting platforms for freelancers. There are many business models and ways of working and collaborating to be shaken in the future.
In my mind, cryptocurrencies are just the beginning of a much greater transformation we will soon to be witness.