Back in 2003/2004, when I was buying yet another CD player (and I had a collection of 500 cd's), I recall this conversation with an audio lover friend of mine who was working in IT. He said that convergence of computer audio into mainstream was inevitable, not only for convenience but for SQ as well. I smirked to myself, thinking to myself that this is impossible - maybe for video, but definitely not for audio. Well here we are, 20 years later, I have about 15-20 cd's left but I am enjoying new jazz releases every week on qobuz.
At the same time, I was big into tube amplifiers (albeit push/pull - I could never get into SET due to the type of speakers I preferred), to me they were the best sounding. And I had the same thoughts then on amps., that this it it - I will never move away from tubes - I wouldn't even consider solid state Class A or A/B then. Well here we are now 20 years later - I don't own any tube amplifiers, but I own a Class D amp. and am planning to consider more down the road.
Not sure for others, for me at-least these devices are going to be ubiquitous soon, just as streamers are, and not just due to convenience but also due to sound quality. And I foresee many mainstream - so called high end brands also getting into these type of amplification devices soon.
Cheers,
Sid