Generally speaking, buying the no expiration feature is ONLY a good idea if you can FULLY cover one or more future vacations with those left-over non-expired tickets. If you have to add even one more day in the future to cover your park admission needs, then the no expiration option is a terrible terrible deal, money-wise.
Let me just show some math. I'll give some examples, one where buying the no expiration option is a great deal, and two others where it's a terrible deal.
GREAT DEAL
Let's say you will be using 5 park days on this trip and know you will be using 5 park days on your next trip.
10-day base ticket with no expiration = $431.33
Two separate 5-day base tickets = $457.96
So if you will use exactly 5 park days now and exactly 5 park days later (and not need to buy any additional days), then buying the no expiration add-on is a good deal. You save almost $27 by using this option over buying separate tickets.
TERRIBLE DEAL #1
But let's say you'll have 5 days left over after this vacation, but plan to go to parks for 8 days some time in the future. That means that in addition to buying the 10-day NE ticket at $431.33 now, you will have to buy a 3-day base ticket for the next trip, which will cost $216.20. That puts your total ticket cost for the 2 vacations at $647.53 for 13 days of park admissions.
So let's say you buy a 5-day base ticket now, and for your next trip you buy an 8-day base ticket next time.
5-day base ticket = $228.98 (buy now)
8-day base ticket = $235.37
That puts your total ticket cost for the 2 vacations at $464.35 for 13 days of park tickets.
In this example, using the no expiration option costs about $183 more than buying separate tickets for each trip.
TERRIBLE DEAL #2
At this point, some of you might be saying, "Now Eric, you gave an extreme example, an example of needing to buy 3 days of extra tickets. What if I'll only need to buy a teensy-weensy 1-day ticket to add to my next vacation ... surely then it would still be cheaper to buy the 10-day non-expiring ticket and just add that little one day ticket later!"
Nope. That would mean you'd need a total of 11 park days. The 10-day NE is $431.33. Adding one additional day would cost $75.62, for a total of $506.95.
If you bought the 5-day now it would be $228.98, and the 6-day later it would be $231.11, for a total of $460.09.
So by being off just one day, the no expiration option would still cost you about $47 MORE than buying two separate sets of tickets.
BOTTOM LINE
If you KNOW you will need to buy extra tickets in the future to add to your left-over non-expiring tickets, it's a bad deal. In one of the examples above, buying the non-expiration feature would cost you an incredible $183.18 MORE than buying the two sets of tickets separately, just by having to by an extra 3-day ticket. And by the way, that's $183.18 extra PER PERSON. In the other example, adding just 1-day to the 10-day NE ticket still cost you about $47 more PER PERSON than buying separate tickets.
So make sure you do the math before you buy.:wave: