every single day ICO projects always appear with their respective advantages. but in fact, many are experiencing failure in the end. they just waste time and spend money to advertise? how about you're opinion

I agree that many ICO failed because of lack of marketing and lack of innovation on their projects. Some ICO are just after the money of investors and Scam the many and left the project behind. But there are some legit ICO that has a good innovation and will probably boom in the future, Just be keen enough to choose the ICO that you want to invest.