Virtually every solution proposed comes down to "make everyone but me pay more." (With a small minority of "make other people do things during the event that wouldn't interest me.")
The discussion may be moot after last night--see below--but I think the best solution for out-of-town guests would be a buy-two-get-one (or two) deal limited to hotel guests, after single night rates are jacked up. If 1-night tickets are in the $125 range, 3 nights for < $300 seems a deal. That would also give UOR a better handle on when other multinight tickets are likely to be used.
For in-town guests, higher prices across the board.
I still have lingering doubts, but yeah, that's the most obvious take-away from last night. Emptiest the event has been all year, from parking booths (choice of empty lanes at 7:30) to security (abandoned the forced queue into the JP garage from Spidey) to the ticket gate to houses and even zones. Jungle of Doom was an easy walk-through around 10! You could move through "MiB Circle" with ease. I saw multiple Freestyle machines without a line throughout the night. At one point, just as HNF was starting, Oddfellow was a walk-in despite a 60-minute posted wait.
For many, the event is no longer about Halloween. It's about seeing and being seen in the Orlando lifestyler community.