you have to review those token bounty. The act hold or sell depends on how do you predict about future price of those ICOs. The price will base on the hype and real value. That is 2 major things you have to concern when you decide hold or sell
Yes, i agree with you, its up to you if you hold it or sell, the price will matter, if you can wait of the of coin will rise then its up to you if you want to sell.