A month ago the potential on BTC was $4400. Not sure anybody would back those numbers today. They might. As a pirate currency BTC is still well-positioned. You're currently seeing the speculating phase of ETH, while everyone who was in BTC decides that it's so last year and jumps into the hot new thing. At the same time, ETH is the underpinning of, like, real things. It can certainly go higher. It can also go to zero.
The exact moment I gave up on btc (and in full disclosure I've never been a Believer) was the exact moment I learned that like 8 miners--or mining consortia, or whatever) control the fate of the software. Isn't that exactly the opposite of what "decentralized" means? ETH makes me raise an eyebrow, and I find it to be an interesting experiment. Not an experiment that I'm going to gamble any more money on than I would playing blackjack, but interesting nonetheless. If it goes on a BTC-like run and pops to $1000 bucks good for me, but I won't cry that I didn't put more money in. Don't gamble what you can't afford to lose.