> It's not wild to speculate that a ticket I buy for an event 600 years in the future might not be honored. People get screwed over on pre-orders with timetables far smaller than that.

I think you're framing this in the wrong way. Anyone buying a ticket knows there is no guarantee that this finale will occur, or that even if it does, that whatever entity in is in charge of it by then will honor the tickets. They treat this as a donation to something they care about, and the ticket is a cute gift of appreciation. And on top of that, the descendants of the ticket-purchasers may have lost the tickets generations ago, not even know about them, or not even care.

Suggesting that people are getting "screwed over" is unnecessarily dramatic.