For me it's another way to diversify investments. I still invest in my house/land, silver, 401k, and now throw in some crypto. When traveling, it may make things easier to not get scammed on exchange rates.
Crypto is cool and all, but decentralization is where it is at. That's why I mine GPU coins, as they have the ability to make everyone with a CPU a few $$$ and keep the servers spread out. Don't let all the power and control end up in a few places, like the stock market and banks.