I will start investing in ICOs if
1) they can afford funds on there own to run there projects and stop relying on softcaps and hardcaps(investors money) which is why its the perfect haven for scammers ,you want to create a project that is very promising and you don't have the funds just move on ,no matter how good the project is if the hardcap is not achieved its goodbye
2)the waiting game is annoying ,if they follow my 1st idea there won't be anything holding them back especially bounty rewards ,nowadays you have to wait months for ICO to end and keep praying it become successful so as to get your rewards and the term successful from any ICO is from 'achievement of hardcaps ' this days not what the project is here to deliver ,there are still good projects out there that never launch ICO and they are doing better
If they invest theyr own money then there is no need for ICO

I think there is alot of projects where devs invest themselves , even life savings , but its not enough . There is few projects out there that was sucesfull , but remember that like 80-90% of the projects will sooner or later die , because there is no use case for them .