The potential of cryptocurrency is a lot brighter than the potential of Bitcoin. The right investment to make in cryptocurrency isn't buying it, it's thinking about it and economics to try to figure out how it can be gainfully used. Ethereum has many potential applications and so may be worth buying, but only if you have a use for it. (The price of every asset is such that buying it is a martingale.)
BTC isn't even truly decentralized - it's Chinese.
https://www.statista.com/statistics/1200477/bitcoin-mining-b...