Because a lot of people still have that dream of that they will be "millionaires" just by investing a little amount of money in a few ICO's.
And this is not a bad thing to do, but you need to understand that if you invest in a scammy one, you are going to lose all your money instead of earning, lol.
Why people invest in ICO when it is risky and these days most of the coins are dropping. Do you think ICOs are going to survive for a long time?