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's not dead yet but so many IEOs were also using ethereum blockchain. Ethereum has a long term vision and did you see what already planned on the roadmap? it has been giving us a lot of explanation about there will be a lot of big things.
ETH is the best coin for long term.