For all the discussion on what a thread is or is not, I am the one who started this thread. I currently have the Sony 5000, and really enjoy it. Is it perfect, not by a long shot, but does it do an incredible job of lighting up a large screen while maintaining a decent amount of contrast, yes. It does a lot of things extremely well, but I agree with Peter, I will never be blinded by my purchase to the point I don't want to see or hear about possible alternatives. I do believe those topics can be extremely relevant.
I have been through more projectors than I want to count. In the beginning, mostly lower end sub $3K units. But then 1080P hit the market, and I bought a Sony VW100, the first affordable $10K 1080P, as the qualia was to rich for my blood back then. I remember thinking, nothing will ever touch this VW100, but then next year there was a VW50 at half the price. By this point, I found myself wanting to be submerged in a larger and larger image, where consumer grade projectors no longer would make the cut.
I then looked at a DPI D-Vision single chip DLP. I loved the brightness, but learned extremely quickly I despised single chip, color wheel based displays... All I see are rainbows, and all I end up with is a headache. So at that point there was only one place left to go, 3 chip DLP. So then I bought a Titan Reference 1080P, and then later a Titan Reference 1080P 3D. By this point I was 3D crazed, and needed more and more light output. So following all of Peter's work for years, I began to explore the world of D-cinema. I was blown away and had to have one. Eventually I bit the bullet and bought a Barco DP4K-23B, 4K projector, and eventually I bought a second Barco, the Barco DP4K-P (Gold Standard) unit for another house. I loved the units, but I found myself constantly being pulled out of the movie, by low contrast. It got the point, I didn't want to watch any sort of dark movies on either unit. Now mine were modified for right at 3,300:1 contrast, as this was before Alan figured out a way to push that envelope up to the 9000:1 range, but that was also restricted to a long throw lens, which I could not use.
Then I hear about the DPI Insight 4K coming out, and set put with a pre-order of it which ended up being delayed for over a year! At that point the Sony was introduced, and at Cedia I can look at both it and the Insight and compare each unit. The Sony was the clear winner, the DPI Insight laser was bright, and needed to be modded to try to increase contrast, it only was capable of Rec709, and it didn't have HDR, or even a 4K HDMI input (yet). Oh, and the Sony was a fraction of the price! Keep in mind, the DPI Insight still can't except a 4K HDMI source, to my knowledge.
I immediately ordered the Sony unit at Cedia, and set in to motion, re-wroking both of my theaters to have the Barco units removed and the Sony units installed. One advantage buying D-cinema projectors offers that no consumer projector does, is that it maintains value. I got 60% of my money back on the 23B and almost 90% of my money back on the P. That is incredible for units that were 5 years and 2 years old.
The Sony is quiet, its compact, it has a depth and a punch to the image that I love, but again there are trade offs. There is no doubt the Barco D-cinema units had better uniformity. The Sony also has considerably more banding than the Barco units did as well, but I am in hopes this is something Sony will resolve with a software update. I have been told, that should be the case, but the update keeps getting pushed further and further back.
Bottom line, I know the Sony won't be my last projector, it won't be the next to the last projector, I hope to live at least another 50 years, and I'm sure over the next 50 years I will have at minimum another 10 projectors. My quest for the best image will always continue, but there are limits to my quest as well. While a Dolby Cinema projector could probably keep me satisfied for the next 10 years, I can't afford a 7 figure projector. Even the new Christie 1m:1 units without Dolby are going to be outrageous, guessing $250-400K.
So while I love to hear about the very best projector on the market, I also at this point in time, can't spend 1/4- 1/2 mil on a projector, when I believe the Sony offers me a considerable amount of performance for my money. I have absolutely love going back through my blu-ray collection and re-watching old 65mm titles just as much as I do watching new reference quality blu-rays or even UHD content.
I love Peter's passion, and I also enjoy following his quest for the pinnace of HT, even if I can't ever afford it, but I do know all of that million dollar technology will one day be in the sub $100K arena, and Ill be ready to play. I agree 100% with Art's previous comments. I live for HT, and its my one true hobby and passion, but at the end of the day, I want to sit down and watch a 2 hour movie, that makes me forget about all my problems or stresses of the day. Its my own personal therapy.
The Sony is just another place holder. It wasn't the first, and it certainly wont be the last, but for now its doing a great job!