It just popped up in my mind.
- You could decorate any room as you like. You don’t even need to step out of it most of the times.
- Other people can be projected inside it like Voyager’s doctor.
- Also rooms could be much smaller. They only need to be big enough a human(oid) can fit inside.
- In emergency cases most holograms can be shut off to match increased energy demands by weapons and shields. You only really need seating/bed and a (non-exploding) console screen.
- Much of the specialized rooms like a bar, med bay, etc. won’t be needed anymore as a holodeck can imitate all of them.
It irritated me a bit that a Discovery gets fancy floating warp nacelles but holodecks are… wait, does Discovery has a holodeck? I don’t remember seeing one.
I remember a line in at least one episode that claimed holodecks consume so much power, they run on their own independent power system and aren’t connected to the warp core.
Can’t remember which episode it was, but it was likely one of the two parters where the Hirogen take over Voyager and have the WW2 sim.
only as separate as the plot demands, sometimes it’s more interconnected