I don't see 3D really catching on. At least not as a driving factor for HDTV sales. If it happens to be something that every HDTV includes it will be adopted for the novelty factor alone but I can't imagine a wide mainstream market paying a premium for it. It's just too gimmicky. I think the push for 3D is simply a result of how quickly HDTV prices dropped. They need something new to sell until 2K displays (and content to sell them) are mainstream.