If you could go to a real virtual gym and lift virtual weights that was no different than lifting real weights, that would be amazing. That would be revolutionary because so many problems would have to be solved.
Instead, the headset has literally solved nothing in the last 30 years. There is a video of Jaron Lanier on youtube showing a vr headset and vr glove in 1990. It could literally be a VR advertisement next year and you wouldn't know the difference.