I agree about ICO is now dead, but i think Ethereum is still worth to hold, because there will be so many upgrade in future like ETH 2.0 and many more. And for long terms in my opinion ETH is still worthy.
It is not an exaggeration to say that, it doesn't matter ICO is dead as you above said ETH is absolutely worth investing in. However, if you are short-term investors, ETH can be the wrong choice for you. That is why ETH is definitely great for long-term investing. Including me, every ETH lover is just waiting for ETH2.0 update, but it seems it will take a bit more time to see new the update.