I just feel over all it's just a hype train. Not dismissing the quality of the unit or its potential, but seems like a lot of things about are extremely exaggerated vs todays day and age. If this unit was still dominating in every aspect sure, I could give it that. However, I personally feel there's nothing extremely special going on and digital has come a long way clearly.
My streamer, pi2aes, was about 275 total. Earlier versions when it first came out before the hype was 200. So when I mention a streamer I am not implying I own a 4000 dollar streamer. I own a volumio primo streamer as well, and I purchased this prior to knowing about the topping streamer and it's main utility to me was USB output to a dac from a streamer. I wish to use my own dac in my second system and there's no way for me to have my pi2aes reach that distance besides physically moving each and every time and generally I listen to both my systems on a daily basis.
Even though I do have a level of gripe with ESS dacs, which the volumio posses, even the internal dac on that unit is great and has definitely created improvement.
I am certain even the blue node is good enough to beat out a cd player as well, even though it's been shown measurements wise the pi2aes is better than probably anything near it's price range. Golden sound said it's better than a 4000 dollar streamer he has heard.
My somewhat false hope was that so many people have told me CD playback is the ultimate digital experience, and this wasn't from the ASR community. But I am certain some people here would definitely feel that way too if they never had a quality streamer. Man you can get away with just a basic pi streamer and get decent performance for 30 dollars.
So really what's left is just video and audio playback using hdmi and your AVR or processor gets the final say, so not really sure what this is all about. In addition, personally I only run audio to my AVR and video directly from the player to the TV. I am not trying to add another step of possible degradation
I don't disagree with anything you say here really. But a lot of the praise for the Oppo machines, particularly the UDP-205, is IMHO not a hype train. Instead, it's about a couple of particular use cases: 1. high-performance analogue output of unconverted DSD content and full-resolution PCM content from SACDs and DVD-As, respectively; and 2. high-performance multichannel analogue output plus digital video output from a single device.
It's about having a high-quality stereo and multichannel DAC and good quality analogue output stages in a single machine that can play multiple disc formats and stream digital files while providing source selection and a high-quality, digitally lossless volume control.
Remember that the price premium of the 205 is all about the audio section - the video section is essentially identical to the 203, which cost about half the price.
And while an AV receiver (not to mention modern TVs) might make digital video processing a solved problem available for commodity prices, this is not the case when it comes to AV receivers and audio processing. As Amir's tests have shown, AV receivers tend to contain multiple weak points in the audio chain, with sometimes-mediocre DAC, preamp, and/or processing stages, and sometimes without the ability to truly bypass all the processing or internal digital downsampling. With a device like the Oppo 205, you get a solid 115dB SINAD (if memory serves) confirmed out of those XLR analogue outputs, and you get a high degree of confidence that the unit's volume control and internal processing is not futzing with the integrity of the signal.
And of course you get an unmolested DSD signal from the surface of the SACD disc through to the internal DAC and out to the analogue stage - no internal conversion to PCM, and no degradation in noise, distortion, or jitter as we've seen in measurements of HDMI de-embedders.
Now, to be clear, I fully acknowledge that 115dB SINAD is no longer something you have to spend over $1000 to get from a DAC, and I also acknowledge that having an all in one unit capable of playing physical discs like SACDs is a niché use case. (Although having bought a 205 at non-inflated prices before they were discontinued, I will say it's pretty darned convenient: universal disc transport, USB streamer, first-rate DAC, and digital preamp with remote and high-quality volume control all in one component - I love it!)
IMHO the Oppo 205 was prized by many folks for good reasons, even though those reasons were not important to everyone. There might be some hype on the fringes of that, but IMHO hype is not the main factor.