Seems to me that 3d is wanted mostly by the film companies and cinemas. Consumers appear to be saying "Meh' and shrugging when asked about 3d.
Personally, I think that if done well, 3D can add a lot to certain types of film (action, children's films etc), but not all. It's better for films with lots of Special FX, as they tend to have lots of action, rather than films that are more intellectual (for instance, I don't think Tinker, Tailor, Soldier, Spy would have benefited from 3D).
Do I think 3D will be anything more than a passing fad. Well, no. I know too many people who are given headaches by the glasses, or made to feel sick.
3D in the home also had the problem of the cost of decent glasses, and wondering whether they'll work with your set. It looks like even the glasses free 3D sets won't be without problems. From what I have read, they'll only work if the viewer is in one of several fixed positions.
Regarding the comment about the move from analogue film to digital, I think that the film industry is being extremely short sighted. Why? Most digital cinema is shot at 2 or 4K resolution. Blu ray is currently 2k resolution. It's likely that the next generation home video system after Blu Ray will be 4 or 8K. The generation after than is likely to be 8 or 16K, but you won't see any improvement if the film was shot at 2 or 4K.
Analogue film has the advantage the resolution is, to all intents and purpose, infinite. So, whether it's reproduce on 2, 4, 8, 16K or whatever resolution we end up with, it should keep improving..
In fact, their attitude is rather suprising when you consider how much money they've made by re releasing old films in newer formats (thinking particularly of Disney here).