It looks to me like Moors Law is in operation in the DAC/Streamer world. It appears that every 6 months or so the quality doubles and the process halve.
My research led me to conclude that the best route is to get a DAC/Streamer/CD all-in-one. Like the Playback Designs MPS-8. The entire world of recorded music is at your fingertips with exceedingly high quality sound.
I think that very soon- in the next 3-5 years the best HiFi source will be an all-in-one DAC/CD/Streamer/Preamp and the power amps will remain separate.
FWIW I'm an old man who loves multi chassis gear "separates" as they were called back in the 70s when cheaper integrated stereo receivers were taking over the market. However I am capable of recognizing trends and IMO what I'm describing here is the future- just as online retail made box stores obsolete so will the digital revolution make "separates" obsolete.