Unfortunately, the vast majority of people's first interaction with "VR" is through Google Cardboard, Gear VR, and other Viewmaster methods of holding your cellphone up to your face. That's about as from from actual, immersive 3D VR as you can get. But it's enough to make people go "Hey, this is kind of interesting but why should I pony up $700 for a Vive? This isn't worth $700." and onto the pile of failed tech it goes.
I truly believe that the future of real VR is bright. The potential is limitless. But we're not quite there yet.