Postponed events give you a clean way to pause a show while you sort out a new date. Mark the event as postponed and everything holds in place: the original date stays on record, ticket holders keep their tickets, and payouts pause automatically so no funds move until you're ready.
Instead of canceling, refunding everyone, and rebuilding the event from scratch, you update the details once the new date is locked and move the event out of the postponed state. Same tickets, same finances, same event, with one less thing that can go sideways when plans change.