Depending on many factors everybody evaluating for himself. I think team, experience and idea itself are the core. If you believe in them, go ahead to ico. If not, wait, maybe it will not reach exchange
i think it would be better to go for an ico so that you won't spend money whereas if you buy you'll spend your savibgs and don't know if it will be profitable or not. we'll every moves has an equivalent output but time comes moving on a upredicted way will bring you in more risk and time consume useless.