Password-protected freerolls allow you to enter ITM with minimal loss of time and nerves due to less competition. If a tournament has 10,000 entries, and the prize pool is only for the top 10 players, the chances of sustaining such competition are really slim. The prospect of creating a starting bankroll from scratch attracts many recreational players, but getting into the money can be quite unrealistic in open events.
While at a private event, winners can receive hundreds and thousands of dollars!
For example, in regular freerolls there can be $50 at stake.