Why wireless headsets for Oculus and Vive could be a step backward for VR

On the eve of CES, where virtual reality is set to dominate, the loudest chatter around VR seems to be focused on the dawn of tetherless, high-end VR headsets. 

The basic idea: to bring the kind of mobility you enjoy with something like the mobile phone-based Samsung Gear VR to premium VR devices like the Oculus Rift and HTC Vive. Some feel that once these higher-end headsets are untethered, VR will truly take off, as we'll be able to fully immerse ourselves by walking around freely in the real world while jacked into the virtual world.