I can't talk about other regions but here the cost difference fromHD to 3D is minimal. Really the only factor is 3D is only available on fairly large screens but if you were going for one that large anyway, it's only a couple hundred more for the 3D. A small cry compared to the huge price difference from SD to HD.
I finally have a HD TV but no HD content. Like most people I got HD for the screen size (and comparive light weight/size) not the resolution.
3D won't take off until there's
A) Content. There's virtually nothing. The only reason to get 3D is future-proofing as there's almost no content.
B) Glasses free. The cost of glasses is prohibitive but more-over, inconvenient. It'll never catch on big with glasses required. Even if glasses were free and all content was available in 3D, most people would do without the glasses (and 3D) most of the time, unless watching something where it mattered.
