Actually... I have an Oculus Rift and have to say I don't use it more than 30 minutes to an hour at a time.
Mostly because a lack of a killer app at this point (Skyrim with special drivers comes close, but I think Star Citizen will be the app everyone has to get VR because its amazing just sitting in the hanger looking at the 3d screens sitting in your ship's hanger that pop out at you).
Anyways... If you can't find 30 minutes to an hour a day to enjoy some me time then I would argue that there is something wrong with your life.
I don't have kids personally but I have dealt with families that do and basically unless you go to bed when the kid does, you should have at least 30 minutes to enjoy the experience.
Basically I spend 30 minutes alone playing games. Then maybe an hour watching TV with the significant other and then to bed to get 8 hours of sleep.
If not, then I would argue, you are going to have stress management issues in your life and no one wants that.
So yeah... The Oculus Rift is amazing. Most of the demos are short games so I haven't spent six hour with it in a sitting, but demos like Titans of Space really take my breath away.
Also the rollercoaster demo made me go "Oh shit!" out loud. Only happened once since successive rides had me knowing I would be ok, but no non-Oculus Rift game has ever made me fear for my safety.
Its something that even non-video game players can get a kick of it.
Anyways, I own one and its amazing. The only problem with it is that I'm going to have to buy an expensive computer to play the 1080p and the lack of games for it right now.
Once both of those issues are resolved. I think we are seeing a revolution.