why should invest in ICO, why not still invest bitcoin. if you still want to invest it may be better if partly invested in ethereum. ethereum is a promising altcoin to date rather than following the ico that is uncertain of its clarity. Maybe it would be better if you make a percentage for investment in ICO. 70% to bitcoin or ethereum which is 30% of the investment in ico that you may believe will be successful. Currently the condition of bitcoin and altcoin is being dropped. Following the ico project will be very big risk than maintaining the existing ones.