Never understand why people imagine this progression. I love gaming, but wouldn't really see the need to implant a PS4 into my body even if it were small enough. And outside gaming and entertainment in general, VR just doesn't have any compelling use cases. Even in gaming, VR controls are still horrible, and games are actually more limited in the range of actions your character can take - since there just aren't enough buttons on any controller to simultaneously move and interact fully enough.

Not to mention that a good 10% or more of people get violently motion sick from using VR.