Altcoins are the future. I'm not talking about another financial coin that just offers another way to send money. Eventually, this trend will probably die out and give way to coins that actually use blockchain and apply it in ways that actually change our way of life.
Take Hadron for example. They're still in alpha, but they've already shown the ability to utilize the idle processing power on our devices. At the moment, they are testing this capability out on classifying images, but they plan on using it for AI computations. The distributed computing aspect has enormous potential. We've already moved from server farms to cloud computing. The next step will be this distributed cloud computing. Check it out:
www.hadron.cloud.
If you're in this long term, find coins that are actually trying to revolutionize something. Find something that you actually believe in. Buy it, hold it!