They really are desperate to keep selling new things to consumers, and the old production industry is desperate to differentiate "pro" from consumer production. 3D is a headache-inducing hassle, and 4K is just too much of a luxury and doesn't make enough difference to the the end user experience. People's houses are getting smaller, not bigger, we're over populated in the extreme! There aren't enough people with room for a 100-inch telly to support this stuff.
There will be another world war before 4K is in every home, unless Apple release a cheap 4K iPad. Like that'd make a blind bit of difference to the viewing experience...
most content I work on day to day is delivered SD or 720p. a request for full HD is quite rare. One project shot at 5K was delivered 1080i. My own promo work is always 720p or 1080i.
The best film-like digital images I've seen come from the Alexa, that's 1080p. Drive looked amazing on a [i]huge[/i] [i]cinema screen[/i], as did Avatar, both 1080p. So where do you [i]really [/i]reap a benefit that justifies the huge extra cost of 4K?
Screw 4K, what about actually distributing some interesting content in 1080p? There's so much out there that's ignored... what about saying "that's good enough quality" for a while, and focussing on the content. It shows that the biggest companies are the distributors...