We the viewers follow high ranking officers on a capitol starship. Surely this cushy position comes with a well equipped post on a vessel that has a good number of such units. Enough so that Voyager had the meme of holographic crewmembers. I don't know if RedDwarf (Rimmer) or some other scifi show got there first.

trust the internet to have already calculated the answer to this question (you can have 10.8 hours per month = 30 minutes a day - not bad!)

https://www.reddit.com/r/startrek/comments/3aajfy/how_much_h...

If it's anything like VR, a bunch of the people on the ship would lose interest and rarely use it, leaving lots more time for the devotees.

Presumably a bunch of people could book sessions in one simulator at the same time and simulate multiple simulators inside the simulation, massively increasing the capacity of the top-level simulator.

Haha! That's like wishing for more wishes. Definitely not allowed.