There is still a large sentiment that compares this technology to the Wii style motion controls, and they really aren't even close... at all.
First there's the expense of the headset. Granted, it might come down a bit, but it's still a large expense on top of a console.
Second, there's the space that you need to play a Motion + VR game. It's not trivial for people to get that. A simple console + TV setup can fit in any tiny apartment around the world. Dedicating a whole room just to play a game? That's like asking people to move house just to play VR...
Even in my house which is fairly spacious, I'd still need to move around furniture everytime I want to play. It's just not going to happen.
Motionless VR, or at least, seated + arm movement VR, has a fair amount of potential however.
The headset itself will basically be a plastic holder with lenses.
Google is already preparing for this future with Daydream (https://vr.google.com/daydream/).
The best idea I've heard so far is VR arcades, that would be fun.
Just because you're not able to do it, or unwilling to adjust a few things, doesn't mean others won't. HTC & Valve have sold nearly 100,000 Vives, Oculus probably similar.
I'm waiting for laser tag arenas that are fully mapped in VR. Walking up real stairs while seeing them in VR... What do you call it when it's past room-scale? Building-scale?