If top price of $2.5 is considered bubble, than yes. But, for me increase from 1 to 2 dollars is far from a bubble. Its just a pump.
You shouldn't look at price, the market cap tells a better story.
How is it a buy right this moment? Everything resembles a large correction may occur.
That's what everyone was saying about bitcoin when it was $10. Admittedly times are different, but ethereum is strong in many areas. When you look down the list of "coins" and you know enough to know, where are you going to park your money? Dogecoin? Monero? Even bitcoin looks dodgy these days. No, ethereum is looking more and more like the futureproof safe bet.