For anyone who's not yet convinced, see if you can get a go on the Samsung Gear VR. It's actually better than the Rift 2 in many ways (I've got the Gear plus both Rift kits) in that it's quicker to get going and the headset and visuals are better. Play a game called "Dreadhalls" and be prepared to be absolutely terrified and, if you have earphones in, be 99% to believing you're in the environment getting attacked by all manner of creatures. (And I should stress, playing this game in VR has been the most extreme experience I've had in a while - it's that good and has won me over on VR.)
My employees have been enjoying all the equipment in the past week or two and I've found that people's tolerance for it still varies. One person can't experience any VR without feeling sick afterwards, whereas others have no issues at all. I think increased realism, resolution and immersion will help, as well as increased exposure. But whatever the case, we live in exciting times and VR is only going to become a bigger deal over the next few years.