Initially I used to think of Crypto as a fad and a pyramid/Ponzi schemes (maybe some of them still are), but off late my understanding of the concept has evolved. If you compare say Bitcoin to Gold there are many parallels
1. Can be considered as stores of value, on their own are worthless (there are edge scenarios where gold is used in electronics etc.)
2. Can be lost or stolen, but cannot be not destroyed
3. Available in limited quantities
4. Work/Energy spend required to obtain them (mining), are not readily available
5. Liquid assets, can be bought and sold easily
6. One is physical, other is virtual
I’m beginning to think that CryptoCurrency has a future.