You have to understand all the risks that all the ICO movement carries now. Since not all of them will bring their case to the end and you can instead profit to receive losses. As for opportunities, Yes, if you invest in good projects at the initial stage, you can earn excellent money in the future. But the thing is that now it has become very difficult to determine where a good ICO is and where it is not... So in their actions need to be as confident and accurate.