Nowsaday, I don't think there is any ICO worth to invest anymore. I had so many bad ones lately. Better off purchase them after they released at the exchanges.
100% true,you are gambling your money away,there's no guaranty that the price is more higher than the ico price,like what happen to icobid and other similar ico coin,price is way to lower than the ico price,so it's better to just watch and follow the ico but buy when it enter the exchange...