I think ICO is less attractive now. Even though there are some projects that run ICO but eventually it will fail and bring novice investors money.
With this service, it can finally be seen that deceiving people is easy and inexpensive, not comparable to what they get from investors. It's better to learn more from experienced ones to invest in the right and profitable way.
IEO as a new tendency of token sales is replacing the ICOs and investing in the ICOs doesn't look attractive for me. It is now a type of fundraising for the scammers and the security concerns are no more barriers for IEO investors. Bearing the new features to the fundraising goals changes the opinion of the crypto population, the situation was changed from negative to the positive side.
Yes, IEO is better than ICO, but in fact after the IEO period is over and the HYPE period is over, prices that have soared become slumped immediately. So I think this is the same as money games. Whoever comes at the beginning gets the most. It was seen from investors who just want to profit quickly. In the long run, it depends on the development of the coin or token itself.