The more events you add, the longer the list of past events gets. This can make drop-down menus for generating event reports very cumbersome.
Archiving your old events makes things much easier. By archiving your old event listings, they will be hidden from drop-down event selection lists.
The archived event listings can be easily toggled to be visible again by selecting the Events | Archive Old Events menu option in your TicketSource account. Simply tick the ones you would like to hide or un-tick to make them visible again.