I’d definitely consider dsp3200 to replace my Ls3/5a system if there was a way to connect something to it more easily. I can’t afford several thousand pounds for, and don’t need the facilities of an 818. I’ve heard rather mixed things about the 218 with Roon - which is what I use for music around my 4 systems. The 210 doesn’t have any inputs. So there is no other Speakerlink possibility.

ROON Rock on an NUC across the systems
Sitting room: 218, DSP7200SE
Study: 218, Quad 303, Spendor BC1
Bedroom: Musical Fidelity A3CR, Chartwell LS3/5a
Various Sonos boxes in bathroom and spare rooms