i think we can earn more profit with ICO. you should choose potential ICOs before you want to invest. Currently, there are many ico projects in the crypto-currency market but most of the projects have no outstanding or inexperienced team in promoting to investors. Try to find potential projects that have well-known experts in the digital market, have a professional marketing team, professional development team, human history will obviously give us a potential project. i know have very much investor can get big profit from ICO, ICO them invest grow up x2 x3 when it have been listing on exchange.