I think the challenge for this thing is going to be the disconnect between what the price point implies you'll get, and what the experience actually gives. For the most part all the discussions about "who's gonna pay to go to this" gets centered around die hard Star Wars fans that will sell their kidney to pretend to be on a spaceship. To a certain extent I'm sure those people exist, but for the most part (especially in the first year or so, before "normal" people have a chance to really save up) most of the attendees are going to be wealthy vacationers that are okay with dropping thousands of dollars on an exciting "exclusive" experience. These are sort of people that would fly to another country and stay in luxury accommodations for weeks, but on the flip side they probably only have a passing interest in Star Wars. These people would mostly end up on the Starcruiser not because they just love Star Wars more than anything else, but because it's the cool new thing that not everyone gets to see.
So the problem is going to be that you'll have all these guests, who are used to paying thousands upon thousands of dollars for a hotel room and will come onto the Starcruiser with an expectation of what they feel like they "deserve" for that price, because they're used to paying it and getting the VIP treatment. Instead, in this case, they'll apparently get a not so great bed, no coffee machine, no microwave, no pool, and you get shuffled around doing gimmicky activities like model ship building and Sabacc for most of the two days. These are not people who are going to love being immersed in the Star Wars world for its own sake, they're going to be thinking the whole time "hey where the heck did my $6,000 even get spent on?"
And sure, you can turn around and tell those people "well it's you're fault for having the wrong expectations!" but whether it's fair or not, that still may very well be the opinion they walk away with. And if the perception spreads that this hotel is not worth the money, all you have left is die hard Star Wars ST fans, who are not as reliable of a market because it would be a years long investment for most of them just to afford it even once. So if Disney loses the core of "big spenders" because of a perception that its a waste of money, this thing could go downhill very very quickly.