Sometimes an IEO is more profitable, but not always. Remember that you can also invest via pools that are much cheaper and you get big bonuses.

Crypto Whales Pool for example:
 
Creditcoin
✅ 100% bonus
✅ Immediate amount vested is paid out at end of pool raise, bonus amounts released 4 months post exchange listing date.
🕘 Deadline: April 30th

Streamex
✅ 25 - 55% bonus over ICO price
✅ No lock-up
✅ Token distribution on June 1st 2019
⏱ Deadline May 8th

More details at https://t.me/CryptoWhalesPool_Announcements
Discussion group: https://t.me/CryptoWhalesPool