I would also add, before ICOs were invented, the number of startups actually ending up doing something disruptive or "making it" were very slim.
Now with ICOs is the same, even if they are using a promising new technology like blockchain, so don't be fooled.
I am also quitting in ico investing at this momebt becuse i dont think that ico investing now can help me to became very profitable, right now i will focus investing in cryptocurrency like ethereum and eos both of this can help my money grow soon.