What I find interesting is that those who advocate digital only see just that, to wit digital only listeners. It's tough IMO to make such sweeping statements when such listeners haven't heard an analog comparison in their own rooms.
I am one of those people. I have also never heard any of the no-doubt amazing home theatre 'ambience' algorithms that are out there, yet I make the sweeping generalization that I don't want to hear them. If I did, I might find that I actually preferred them - for some recordings and for a limited time until I became bored with them. But at the same time I don't know that. Maybe they're fantastic.
Should I invest a lot of time seeking some of these systems out to listen to them? Sadly, I say no, because I am a purist. I think it highly unlikely I will hear an artificial algorithm (which is also what "analogue warmth" is) that enhances my listening on all recordings for all time. Life is too short to waste on messing around with such random stuff...
If, for a minute, I thought that there was something wrong with the way my system sounds, I would be looking to change it, but all it does is surprise me time after time with what lies within recordings. No artificial warmth is needed.