In a society technically advanced enough for time travel to be a reality, I would expect that the StarTrek holodeck or some other incredibly immersive VR system

In a society technically advanced enough for time travel to be a reality, I would expect that the StarTrek holodeck or some other incredibly immersive VR system is already widely available. Why go through the hassle and potential danger of actually going back in time to experience another era, when you could just dial it up and have a safe and tailor-made experience? I could potentially see historians wanting to do such a thing, but again, why go yourself, when you could send a swarm of virtually undetectable spybots instead?