I too have a 3D television, because it is a great TV in 2D. I have not watched anything 3D on it, and do not intend to do so, though it is possible that my grandchildren might want to at some time.
I have seen a couple of films in 3D, which were interesting for their effects, but not a pleasure to watch.
When 3D gets to the stage that I can see in 3D with one eye closed (as in a holographic projection), then I may be happy with it.
3D screens have a place in gaming, remote sensing and manipulating, and other areas which will grow over time, and so will continue to be with us in the future, but I do not see 3D TV becoming mainstream.