Sometimes it's not bad to buy during ICO, in my opinion i think undergoing a deep study of the project should be done first because there are coins that performs well in the market once get listed especially those alts that gathered a lot of funds during ICO and getting listed with one of the top exchanges. what i mean is there are alts that doesn't fall automatically after ICO, Bounty hunters are the ones to blame for the dumped price but it doesn't happen all the time because there are highly potential coins existing.