This thread became another pitiful "Streaming vs Blu-Ray" debate, in the face that next gen blu-ray is inevitable.
IMO, Sony's "bag of hurt" is because of easy piracy because the internet speed has grew tremendously in the past few years, Nothing more nothing less.
To me, high frame rate is more important than 4k resolution.
Much of the temporal resolution of the captured moving object is lost due to low frame rate of cinema (24 fps) and becomes a blurry mess.
The industry is stuck with the crippled 19th century 24 fps, which limits the perceived resolution of a captured moving object.
Isn't it what we try to achieve with 4k, better resolution?
24fps is also a big culprit of eye-tracking motion blur because of the distance between the captured object between two frames (do a google search is you don't know what it is).
Well IMO, 4K in 24fps is utterly pointless and a marketing gimmick, UNLESS its combined with HFR.
Even 1080p is well beyond adequate with HFR.
Heck, 99.9999% of all the projected films in cinema are mastered in 2K (2048 x 858 for 2.39:1).
Here is a sample of 1080p60 (45MB): Japanese Fox Dog Panning.
I can see a huge progression in cinema realism if HFR is adapted instead of the dreadful 24fps we have now.
As you can see, IMO the biggest improvement in the next gen of cinema and home video should be HFR, more so than resolution.
I have to repeat this again: 4K is pointless without HFR, without HFR its just a gimmick for motion picture (for images is another story).