Regarding ‘there are not so many sound machines’ - that was my main reason for selling my AR Mk I. I was really disappointed by the basic-ness and inflexibility of the analog sound creation on it. I already have an actual 808 and 909, and a good bit of what it can do is taken up with trying to be a stand-in for those boxes.
The ancillary stuff it can do with scenes, perfs, the way it does solo/mute (including being queued) - all that is so much better than the Digitakt. And being able to layer with samples is great. But as an analog drum machine i think it’s a failure.