It’s all very confusing, because it has nothing to do with common sense or logic. It’s a matter of knowing DIsney’s exact rules and policies. I’ve been keeping current on this stuff for years, but I know that when you’re fairly new to it it’s confusing and makes little sense. I’ll try to help.
There is a time-limit for upgrading a ticket or adding days to a ticket. Even for tickets with the No Expiration option, you can’t add anything to a ticket after 14 days from that ticket’s first use. So, for example, if you have days left from a non-expiring ticket you bought last year, you CAN’T add days to it now. Those leftover days are still good, but you can’t add more.
What Disney Teacher was getting at is that due to Disney’s pricing structure, buying, for example, a new 6-day pass costs almost nothing more than buying a new 4-day pass.
For example, let’s say you have 2 days left on a non-expiring ticket. And let’s say you plan on visiting Disney parks 6 times during your next trip. A 6-day ticket will cost you $231. If you decide to buy a 4-day ticket and then use up those 2 non-expiring days, that new 4-day ticket will cost you $225. That’s correct, that’s not a typo … the price difference between a 4-day ticket and a 6-day ticket is only $6. Six bucks.
So think about it. In the above example, you have a choice. You can buy a 4-day ticket and use your non-expiring 2-day ticket to give you your 6 days, OR you can just buy a new 6-day ticket and keep the non-expiring tickets at home for some other time. If you decide to buy the 4-day ticket and use up the non-expiring ticket, please realize that you saved only $6. Hardly worth it, in my opinion.
Since non-expiring tickets literally NEVER expire, I’d hold onto them for some unknown future time, some time when I might find myself in Orlando and only have time for 2 days at Disney parks. In that case, that would save you a TON of money, since at current prices a new 2-day ticket costs $156.
I’d rather gamble that some OTHER time in the future I’ll use up those 2 non-expiring days, rather than use them now and save only six bucks.