In fact I had bad experiences with ICO's, I bought many of it at a high price in the initial selling stage and when it was listed on the exchange after a long time it was low price and i lost a lot of money, in addition to that many of it is scam. They make big advertisements and most of the ICO's are false and I didn't make any profits from it and so I left it permanently long ago.
Yhiaali3 what you said is truth, most of the ICO's had high presale price, and at the moment when they hit exchange the price
drops in a couple of hours. I experienced 500% drops from morning until the evening. I learned to not invest in sales, it's better
to wait listing and to buy when price drops, if I really wish to invest in that project.