Reasons why i prefer mining coins than investing a dime on IEO/ICO projects
1. My profits is assured.
I dont have to wait for a project to do x3 or whatsoever to get profits on my invested cash,with better mining rigs and good calculator you will know when your ROI will come.
2. No worries of getting scammed
I dont have to investigate an exchange before investing or wasting time doing research on projects before investing,all i do is mine ETH and sell for fiat or decides to hold for a little while.
It is true that you say that if we do mining we don't need to worry about getting a scam. But I think not everyone can do it because there are several factors that must be owned and some people will also prefer to invest. So I think it all depends on the factors and also the desire of everyone to do mining or investing.