To be practical and easy investment choose IEO. This is the hassle free investment in crypto for now. But make sure to join only on good and huge exchanges such as Binance, some IEO are not trusted enough and no liquidity right after their token sale. ICO is for risk taker who still believe with some potential projects that has capability to become a good project.
I agree. IEO is quite effective for investors who have no experience in cryptocurrency, no need to bother analyzing too complicated because usually a global exchange like Binance will be very selective in choosing an IEO partner. But it must also be understood that there is always a risk, be wise in managing your funds.