The problem with these devices isn't the price or the software.
First, people need to have these giant devices attached to their heads. Not everyone wants to wear these things. Lots of people wear glasses so it'll take some time before people accept this tech or it is adapted to these people.
Motion sickness is real. VR is worst with motion sickness because you are completely isolated from your environment. Mainstream people, especially older people will not jump in this tech if it gives them headache or makes them feel dizzy. This will take some time.
Another problem for it to go mainstream is that these experiences are for one player at a time. Just like these 3D TVs that use 200$ goggles. Yeah for 2 people that's 400$. Now imagine your household needs to buy two headset for one specific game... and the library isn't that furnished yet...
Imo this is more like Kinect all over again than Wii.
Tech heads, hardcore gamers and early adapters will be the ones that will buy these things for the first 5-6 years. Then maybe if the next consoles come with the device we'll see the adoption rate doing better.
