I have been wondering about 3D too. Most new TV are 3D compatible. It's just no longer the biggest selling feature.
While there were several last gen games there were 3D as you stated. I'd add Star Wars Kinect, Gears of War 3, and Halo CE: Anniversary to your list. Neither the PS3 or Xbox 360 really had the power to pull it off as well as it should.
When Microsoft reveal the feature in the ".1" update to DirectX 11 the major thing it added was 3D support. Allowing developers to use or make a game 3D much more easily. DirectX 11.1 is only available on Windows 8. I think we have yet to see what they will do with it.
I think the biggest thing holding it back is the glasses. People don't like having to wear the glasses. With goggles, like the Occlus Riff, it's not as much of an issue other than putting them on themselves. (Personally I like the passive 3D much better than active shutter.)
While we just haven't seen what the PS4/X1 can do with 3D. But I think many people are waiting for those amazing 'glasses free' 3D TVs.







