Honestly, if Disney offered say a 10 day ticket that could be used anytime for a year after first use, I would be ok with that, but I can't justify paying the prices for a one day ticket when there are far better values like Knott's to be had and be able to enjoy an entire year or more for less than that one day.Disney sent myself and many others surveys about new annual passes just 2 weeks after they announced they were ending the program.
I'd love if the companies would move to a true ticket only option. There's no way their current prices are reflective of this.
If Universal can sustain charging 130 a day and Disneyland 150, more power to them. I'd personally be upset to buy a ticket just to find out I could've waited a month to get an annual pass.
edit: Universal is offering passes again
I think in the short term Disney will be able to sell tickets to sustain it, but I think only for a couple of months at most.