Yes they only sell a specific amount of tickets. When that number of tickets are gone they will sell no more. The same goes for for e-ticket nights. Disney prefers that the public not know the exact number, so I will keep that to myself. FYI--Halloween night ALWAYS is a sell out way before that date. Other nights are sold out too, but none as quickly as that night. Since that night is a Sunday night, not sure how many locals will attend. Probably Friday the 29th will be another big sell out--mostely because of the locals. We are hoping to go on Sunday the 24th.