Huh? HBO 3D lags behind the release dates of Cinema, thinking that way you might as well say "why would they offer you HBO HD when it might take away from their VOD sales". Doesn't really make sense, one is a version of renting a new release, the other is a much delayed select offering on a channel, they are not competition.
As far the tv's, yeah, last year was the first real big year and a limited selection. This year many of the cheap models will even have 3D, and it's heading the way of 1080p, where it'll be a standard feature and you can use it or not.
I saw the same mentality with 1080p and Blu-ray, and we all see how well they did. Folks, whether it's your thing or not, 3D is getting a huge push from providers, programmers, CE companies and studios. Its not going anywhere.
I can see it not being your thing, but dont try and make it laserdisc either.