This is quite close to how I also see it.
There are crazy ideas that pay off - and there are not many that invest in such projects - and there are cool useful ideas which bring more people in.
In both cases there are chances the new company will make you rich or will fail completely. Or it's a scam.
The problem I see is that the ICOs are not checked as good as kickstarter projects, giving the ICOs better chance to scam.
The online world makes it happen that anybody can participate to an ICO, but also the online identities are easier to fake...