Investing in ICO/IEO, it's a risky business because, in recent time, a lot of scam project hampered the market so much, you have to judge very carefully if you want to really invest in any ICO, but I suggest you buy Bitcoin and hold for a long time, I think holding Bitcoin is the best way to make profit unless you are too unlucky, you know Bitcoin is the best coin in this platform, All the crypto's market depends on this Bitcoin price, Bitcoin will not vanish and it will bring a good amount of profit in the future, Not only that but also Bitcoin will dominate in the monetary platform if some country will approve it as legal digital currency, Only China and The USA are enough to change this situation.