if we talk about BTG will find it a coin with few number of developers , miners and real project  so if you invest on it will be so risky .

problem about you is you get bought your BTG (if you get it for free can say just keep it ) so if you need to this (390$-520$) try to sell it fast with any lower price other wise just keep it no one know what will happen in future and when you enter ICO you must loss and learn from loss