Here is why I think the sales are low. 1) Less discretionary income due to a recession brought on by massive fraud on the part of Wall Street. 2) 3D disc sets and 3D movies are ridiculously expensive. 3) The glasses are annoying to wear, but the biggest problem is that they cut light output to the eye and make everything appear dim. 4) Not enough live action releases; although, I personally believe that 3D works best with computer animated films. 5) A lot of people think 3D is gimmicky and adds nothing beyond 2D. 6) A lot of people complain about being affected healthwise when they watch 3D movies. I believe those are some of the main reasons for the lack of sales. I listed them in that order, but that doesn't mean one reason is greater than another. As for whether 3D looks better in the theatre than at home, I would say it is not a factor in lack of adoption. In fact, in many respects 3D in the home, via active shutter glasses, looks a lot better than at the theatre. The advantage that theatre-based 3D has is screen size. Home 3D loses a bit in that respect because you are always aware of the edges of the screen. Seeing the edges of the screen reduces the immersion factor of 3D. Edit: I should actually amend #4 and say that there is not enough content being released in general. Also, the strategy of exclusive releases tied to a brand of television has probably done a lot to damage adoption. People want a lot of content available at a reasonable price before they will even think of adopting a new technology. Only early adopters have little concern for lack of titles because, in general, they are technophiles who are always attracted to new technology similar to birds who like shiny objects.