You really can’t compare the 3D TV “market” to the VR market though. 3D TV’s failed because there was no consumer demand for it. It wasn’t the consumers that pushed for 3D TV’s to be developed, it was the TV manufacturers that came to a point where they could go no further and keep prices high. VR, on the other hand, is almost completely dominated by the consumer demand. Take the average remarks by consumers:
3D TV’s: “Ok, this is cool, but, I could live without it”
VR: “OMFG, where can I get this? $350!! THAT’S IT?”