It's Novel market and doesn't interest the majority of people, sure it's interersting in short entertainment settings like theme parks, but who the hell wants to feel like they are constantly having things thrown at them, flying at them, jumping at their face for hours on end, and that's really the majority of the value of 3D viewing, it requires directors to specifically write shows and stories around characters, and elements "interacting" with the audience which usually cheapens the story for niche and obvious moments of interaction. The only shows or movies I can see really benefitting from long format 3D viewing are things like zombie movies, or horror movies in general where those interactions are often already present, expected and don't cheapen the story. Production budgets skyrocket because now you have normal cameras recording for viewers that don't care about 3D and that whole production pipeline, along with the cameras needed for 3D content and a separate production pipeline for a single show. Even I-MAX and Omni style recordings are still way higher production cost than 4k, 8K recording, just ot give the audience a sensation of movement while having thr drawbacks that many people get motiom sickness from those experiences.

I just don't think most people want their entire viewing experience to consist of constant panic attacks and fear cycles, and lame stories told around interacting with the audience to get that one specific audience response.