It's going to get much much bigger in the coming years with oculus rift and other virtual reality devices. Its functional in most games now but at the same time its also far from perfect. Too many games 'fake' effects on a 2d plane so, they fail when converted into 3d. Often you need to lower settings or turn off others to get the best experience.
I love it when it works but its pretty rare that it works perfectly. --- 2500k @ 4.4 | P8Z68-V Pro | H80 | 8GB RAM | 770 + 670 physx | 256 SSD | 8TB HDD | Win 8.1 64bit | ax1200w | CM690II Steam: DV8ing1
Nvidia seems to be supporting it pretty well. I would say it's fine and most likely not going away. --- Interestingly enough, video game companies used to be able to make money without selling out like cheap prostitutes.-KaiserWarrior