3D Displays, will they arrive?

Some days ago youtube suggested me this video:


I must admit that I was always interested by 3d displays and holography and an announcement of sharp in 2004 made me ho to finally have the possibility to see 3d "coming out" of my monitor . And I was surprised that, till now, even thoug there are a lot of technologies that would enable such a feature nothing had really come out.

So I wonder why, do they all have a poor image quality, or there is just no interest in such tecnology?