If I was betting, this would be my bet. It always felt like something that would be sold out for the first few months and then start to taper off, even if it was an amazing experience (and it is apparently quite good). It has a relatively small customer base at the current price point -- people who can both afford it and also care enough about Star Wars to want to spend 2 days in a Star Wars LARP. There are a ton of Star Wars fans, but who knows what percentage of them both want that kind of experience and can actually afford it.
With that said, inflation, gas prices, etc. is certainly part of it too. People who may have been able to stretch their funds just because they desperately wanted the experience are probably unable to do so at the moment.