With what i have experienced over the last 2 to 3 years is that buying btc or eth and holding was better than buying any ico because when we calculate some ico projects never deliever, some just close, some fail to develop demand in market hence low price only some lucky projects will reap you good profits but by the time that happens the eth would have pumped as well so when you will compare you would still have been better staying in eth than all the new adventure.