Okay, I understand now what is meant, thanks.
But... When Disney offers their usual discount rooms and I grab them immediately, I'm paying less for that than other guests that didn't grab the discount when it was offered.
It's almost like a reverse surge. The standard rack rate is a default surge in this case.
There are also deals on tickets at times. And people who buy more tickets at a time get discounts for each extra day. And APers who go often enough are paying a lot less for park entrance than those without AP.
The point being is that there are already lots of cases of people paying different amounts for the same thing.
And just some parallel points of information. Disney does surge pricing for the tickets to their Broadway shows (Disney pretty much invented Broadway surge pricing). And airlines use surge pricing. As do hotels.
Although, I think it works in Disney's favor to keep raising the base/default price and offering discounts when it behooves them as a sort of reverse-surge tactic. It becomes more palatable when people think they missed out on a limited-time discount than to find an upcharge surge fee as the cause of them paying more.