In short, "Yes" to the OP
But:
Tube DACs are still evolving, though at a slower rate than 10-20 years ago
SS Dacs will continue to diversify on tried and true principles, but now with more hybrid designs (not just tube/SS, but now SS and Class D) and now incorporating more R2R designs
Class D is as mature as it has ever been right now, but will continue to get better as the tech progresses (eg, from primordial switching tech to ICE modules, to NCORE modules TOTL)
That said, I found an old Sony CD/DVD player from 2000. MSRP = $3000, mine for $40. has a R2R CD DAC and is just a smidge below the SQ of my $3000 Sim CDP (2005) and $5000 Bel Canto 3.7 DAC (2015)
But:
Tube DACs are still evolving, though at a slower rate than 10-20 years ago
SS Dacs will continue to diversify on tried and true principles, but now with more hybrid designs (not just tube/SS, but now SS and Class D) and now incorporating more R2R designs
Class D is as mature as it has ever been right now, but will continue to get better as the tech progresses (eg, from primordial switching tech to ICE modules, to NCORE modules TOTL)
That said, I found an old Sony CD/DVD player from 2000. MSRP = $3000, mine for $40. has a R2R CD DAC and is just a smidge below the SQ of my $3000 Sim CDP (2005) and $5000 Bel Canto 3.7 DAC (2015)