What your BIL and SIL got are called Fast Passes. They are free. You take your park ticket, slide it in a kiosk at the attraction and it spits out a pass with a time for you to return to the attraction When you return you enter the attraction through a separate line, cutting your "in line time" down tremendously. Fast Pass is only available at select attractions and each ticket can only have a certain number of fast passes (one to two within a certain amount of time) on it at any given time.My bil and sil just went about a month ago and got some kind of speed passes they sounded great. Don't know how much extra they cost but seemed like they would be worth it. Maybe someone here has experience with them and will chime in on if they really are worth it.