Depends how far ahead in time you are looking, within 5 years probably a very bad idea, but I have no doubts that gaming will be heavily based on VR in 100 years or so.
For the moment i think it will simply not work. There need to me more iterations to make VR systems better.
Once VR systems will work well, then they can be implemented in games.
Non ti fidar di me se il cuor ti manca.
When we get to systems like Star Trek holodecks then VR will work for MMO's. Any less than that and it won't.