"The difference between 2D and 3D is like looking at a moving picture, and being there. Stereoscopic 3D is incomparably more immersive than 2D."

"I moved to colour, and I'd never go back. Likewise, playing in 2D seems lacking equally lacking--I'm not exaggerating. There is also a side-benefit for gameplay: you can effectively see more detail on a 1080p monitor with 3D enabled "

Being an owner of an Nvidia 3D vision kit for about 3 years, I can testify that the above sentence is, not only true, but it expresses exactly what 3D vision gaming is.