The Vive is amazing. If you have not experienced one, find the nearest location to try one out for yourself. It is something you cannot explain in words. Some GameStops and Microsoft stores have demo's where you can test it in store.
The Vive is room-scale and comes with two controllers. Other solutions do not have these options currently, they are seated experiences only and you use a controller to move. Room-scale adds another level of immersion that is magical.
As for VR integration in Chief, that would be killer, however from a development standpoint they would have to sink some serious $$ into R&D. This is one area where an API would be beneficial, someone else could do the development and sell it as an addon. Or Chief themselves for that matter but it does not look like they use that type of model.
I imagine the export option is the best we will get. Maybe they could tweak it to less steps, Export VR to Zip and include all the files and textures you will need.