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.
in the past, when the glory of ico show up
a lot of project born in ethereum network and maybe thats one from many reason why the price of ethereum growing
but, personally i believe with or without ICO, ethereum will always become a good investment for long term my friend