Well, to be fair 3D really has been around for a LONG, LONG time. Advances in technology have been slow at best. Shuttered goggles have been around for a long time now, I remember some games supporting them with special hardware and the latest graphics cards in the '90s
Granted that as we move away from the old, ugly, awful Green/Red or Blue/Red headache machine methods toward more transparent 3D the user experience gets better, but even polarized 3D has some picture quality issues that are going to be difficult to address and not everyone is going to be ecstatic about the idea of having to invest in a whole new setup (after all, for as many 120hz TVs as there are out there, very few TVs accept 120hz input, let alone 240hz input TVs). Yeah, some technologies are "3D ready" and the spec has just been finalized, but I think there are a lot of reasons why this won't necessarily be a technology that people are going to rush to bring home.
The field of vision issue is the biggest one - the depth and "there"ness of the 3D effect is highly limited by your field of vision, and even a big TV isn't going to compare with a giant movie theater screen or an IMAX FoV so the immersion that 3D dangles in front of you can turn out to be pretty disappointing when you try to take it from the theater to your house.
I just don't care about 3D very much. It's not a new thing, and it's not REALLY 3D. If we get something that offers true three dimensional projection in space then I'll bust my life savings getting the latest and greatest so I can have my very own holovid or whatever they're going to call it. I don't feel nearly as compelled to rush out and get a new TV and some special glasses for my family and friends just to have a sort of limp imitation of a theater's 3D. I like modern 3D technology at the movies, but it's just not something that can be brought home unless you want to sit like three to five feet away from a 65" screen so that you can really be in the illusory depth rather than just see some stuff kind of come off the screen a little.
I mean, it's neat that my PS3 will support it, and maybe I'm wrong and it'll turn out to kick arse and this time next year I'll be shopping for a TV that accepts a 240hz input
I'll wait and see. But I think there are conceptual hurdles rather than technological ones which will limit how nice of an experience this will be at home.