In my opinion, ETH is an important coin used for ICO projects since distribution of cryto coins are easy and convenient, so if the ICO market is hot, the ETH price will sure be high, just like a month age, but recently the ICO market is not so hot and many crowdsale is not crowded at all. Then the pirce is low. So it depends on what you prediction on the ICO market.
As I said above, I think that ETH is much more than that (coin used for ICO projects) and this is a short-term vision that the crypto community helped to create by seeing every ICO as an oppornutity for fast profits.
Ethereum network and even some of the ICO projects (not all of them, of course) are much more than that. We may be part of a revolution that could change how produts and services are traded through the descentralization of everything, so I think the smartest thing to do (for investors) is to put money that you won't need for some time (and won't kill you if you lose it all) and periodically buy more and more until we see the outcome of this disruptive technology.
I had the opportunity to buy some ETH way before it reached 20 dollars, and so I did, and it wasn't much but since then I haven't sold a single unit (although I used some to acquire some other promising tokens) and instead bought some more month after month, and I won't stop until I see my family and friends using dApps in the day-to-day or something else replaces Ethereum and I lose my investment, but this is not something I would bet that could happen any time soon.
But again, this is my opinion (more as a developer than as an investor)