|The Sony 4k VPL-VW1000ES projector in all its glory|
The tests reveal what many people, myself included, have thought for some time: even with 1080p, huge resolutions are only necessary for those with huge displays. I have a 42" TV in my living room. I absolutely cannot tell the difference between 1080p and 720p unless I am sitting very close.
The only way that this resolution will EVER make sense is with a huge projector screen. I have never been one to say "Ennh! Crazy Kids! Black & white TV's are good enough!" I am not that guy. But when a technological advance is indistinguishable from the previous generation in standard use, there is no point aside from numbers.
For the home-theater aficionados among us, though, this is kick-ass. As Engadget showed, the 4k resolution is quite noticeable on a large screen, and the Sony doesn't suffer the significant drop in brightness that many home projectors did back in the transition to HD from SD in the late 1990's. If you have the money, and more important I think, the space, this is one delicious luxury. For the first time in history, a well-funded home theater can be a comparable experience to a real theater.