The problem with the poll is that there's an implied bias that if we're seeing fewer movies at the theatre as compared to the number we're viewing at home, that we're attending theaters less because of the availability of home theatre. But that's not the case (at least not for me).
I'm seeing fewer movies at the theatre because most movies today suck. No major studio is willing to make a movie that's going to earn less than $350 million. There are relatively few films made for intelligent adults about realistic people. Everything is a comic book movie or the equivalent or a movie about Peter Pan boys behaving badly. Lots of blowing things up in the former and lots of unfunny toilet humor in the latter and little character development or strong writing in either.
I'm also seeing fewer movies at the theatre because prices have gotten really expensive and because the theatre experience has gotten far worse as the industry further consolidates.
In NYC, the AMC Empire 25 charges as follows: regular 2D: $14.50, RealD 3d: $18.50, ETX 2D: $17.50, ETX 3D: $19.50; Lie-MAX 2D: $19.50, Lie-MAX 3D $20.50.
IMO, that's a lot to spend for a movie that is either going to be bad or bore one to death.
In spite of special venues like RPX and ETX, the sound quality usually sucks. It's brittle and often way too loud. I really don't want the dialog "yelling" at me for two hours. Doesn't anyone understand what dynamic range means anymore?
And even if one wants to avoid 3D, 2D has been ruined by the presence of 3D because most digital projectors leave the 3D filter on when projecting 2D movies, greatly affecting color quality and dimming the image, although I just did see an ad for a device that fixes this in the latest issue of Boxoffice magazine.
There was a time when if I passed a theatre and something was about to start, I'd go in. But now it's much more of a rarity. There's rarely something I want to see. I find that sad because I probably used to see 50 movies a year in a theatre.