Unlike most people i think VR will attract core and harcore gamers and not casuals like the Wiimote.
VR does not offer a new way of playing games it's just improve the game immersion.Hardcore gamers don't mind to buy a new consoles just because of the graphics improvement so they will don't mind to buy a VR headset.
have you actually watch any VR videos? the gameplay in VR can so clearly be different than anything that can be done with a traditional controllers or even a wii-mote. VR is probably the most gameplay changing event since the transition from 2D to 3D graphics and clearly leauges above the wiimote. ...and i'm by no means a VR champion but i'm also not going critize the technology with blinders on only seeing the negatives completely dismissing the positives. the new gameplay possibilites is the biggest positive VR has.