Sooo… some thoughts here.
1) As has been said above, Starcruiser seems to many like a massive rip-off from a company that lately excels at massive rip-offs, and it’s success validates that behavior. Now, I understand that some folks think it is worth the price to them. I absolutely understand that. But just because something is “worth it” to me (or anyone) personally doesn’t mean it isn’t, more generally speaking, a rip-off. I frequently judge an experience “worth it” even though I understand I am being, more objectively, ripped off - for instance , when I spent several days at WDW recently, I knew I was paying a lot more then I should for the value I received, but I choose to do it anyway. So please understand my use of the term “rip-off” in that context.
All that said, the cruiser offers 20 hours of original content plus a (rather small) place to sleep and time in Batuu. For $5000 or so. The fact that that price point doesn't seem even MORE unreasonable is a testament to how much Disney's insane hotel prices have warped our perceptions.
2) Much more importantly, the Starcruiser is charging these mad prices for elements that were supposed to be included in Batuu before it was cut to the bone. A Star Wars sit-down restaurant? That was supposed to be in the park. Colorful characters walking around that you can interact with and that play out little scenes? That was supposed to be in the park. Storylines you could observe or interact with? That was supposed to be in the park. But WDW decided that guests who payed the already incredibly inflated prices for entry to MGM didn't deserve those (promised) elements. Instead, they are being plopped behind an even more massive paywall.
And the success of the Starcruiser validates that choice. If the Cruiser really takes off, so to speak, does anyone really think that Disney won't take away the lesson that premium content, the truly interactive elements, the stuff that used to be what made WDW special, needs to be locked away from the everyday guests and offered only to the big spenders? This is a resort in the process of monetizing rides that have been free (once through the gates) for decades. And all of this is a notable intensification of a trend that has been driving WDW for years under the current management - guests are aggressively stratified into the haves and have-nots, with the latter treated as decidedly second class. So no, Cruiser's success won't drive investment into the parks - quite the opposite. The parks will become advertisements for the REAL experience behind the multi-thousand-dollar gate.
I never thought the Cruiser would fail, certainly not quickly. Experience has shown there are no known limits to how much many will spend on a Disney fix. But as far as I can see, the success of the Cruiser is very, very bad for anyone who loves the parks.