Also 4k TVs are starting to come to market. Mass market is far off, but more powerful hardware will be needed to render games at those resolutions.
Personally I'm thinking 4k is going to be the caviar of TV tech. An expensive luxury for the elite that a lot of people just don't have the pallet for.
In large TV's it may make pointing out issues much harder, and it may be super cool for a moment, but I don't think it is going to be something everyone can appreciate like the SD to HD transition, nor do I think people are going to get distracted by a "low quality 1080p movie." I've spent my working life sorting out image quality issues in print media and from what I can tell, most people just aren't tuned into things well enough to appreciate the kind of detail a 4K screen has, and the data through put on those things is nuts. It's high overhead with moderate practical payout. Factor in viewing distance for the size of TV's 4k is useful for, the common occurrence of poor eyesight, and there is a problem. Only people with big budgets, large TV's, and solid eyesight are going to be able to tell the difference close up. I'm sure there are people who will get it just like there are people who think MP3s are so inferior to FLAC, but if Amazon started selling FLACs instead most of us wouldn't be "yeah better quality!" We would just be like "why are you wasting my HD space? I cant tell the difference."
All things being equal, fine, and maybe I'm being a fuddy duddy, but I really have no personal interest in directly or indirectly paying for the wide spread revamping of a TV, gaming, and Internet infrastructure to allow for a technology that seems to be rather gratuitous in function and requirement.
Of course I have never seen it first hand and this is all my initial reaction. So I might see it and freak out at the awesome, but if I have to buy a 50+ inch screen and whip out a magnifying glass to sort out what I think, then I think I will probably just ignore the trend for a good long while.
As it stands an HD movie can top 9GB for streaming, I don't even want to know what size a 4K movie would be. I doubt Netflix does either, and a 1080p movie on a 4k screen is still 1080p.