We just bought non-expiring tickets last month. It was a pain to have to call; I prefer just to get things done online in the evenings. They say it is because people didn't understand the option, so they want to fully explain it, but I know it's really because they don't want to sell them. The difference in cost for non-expiring is a whole lot more than they used to be, but I did the math, and it still makes sense for us. We usually go once or twice a year but only spend 2-3 days a visit. A 10-day non-expiring ticket costs less than any combo of three or four shorter multi day expiring-type tickets, and that is at current prices. You know the prices will be going up, saving even more. It used to be a really huge savings, even just a few years ago. I think they want to slow the use of these as they move into the variable pricing schemes we've heard about. They charge more now for a single day ticket at MK than the other parks, and the word is that will continue, as well as maybe charging more for tickets at popular times like the holidays and summer, (or maybe charging less for tickets at less popular times of year?).