AFAIK as I know ICO provide risky investment compare altcoin trading but it's provide more profit if you're choosing great ICO.
Anyway I'm invest on my first ICO , Pundi, with 1 ETH so hopefully I can made profit from it
You seem lucky to get a profit. And I only once invested in ICO A2B Direct and this project did not collect softcap and did not pay me back my Ethereum. So I now prefer earn tokens on bounty and airdrops.
in my opinion, only Bounty campaigns remained more or less profitable or less risky to earn a cryptocurrency. As long as there are fraudulent projects on the ico market, this business is in a dangerous position.