Just weighing in to support the view and points made by
@John Phillips here.
I've been lucky with audio insofar as the only piece of audio-specific streaming hardware I've ever bought way back in 2011(!) - the Squeezebox Touch - is still in the game (despite Logitech pulling the plug years ago) largely due to the hard work and passion of the developer community. It's currently working well (albeit not with 100% functionality) with a Roon trial.
Contrast this with video where during the same period I've had:
Netgear NeoTV 550
Western Digital WDTV Live
Sony BDP-S380 Blu-ray player
All of which are long out-of-date and a Sony BDP-S4200 Blu-ray player that has been unplugged for 9 months since I got an Nvidia Shield TV; the latter like a Ferrari with Netflix, Amazon, YouTube etc compared to the pony & trap of the Sony which is likely to become obsolete pretty soon too, other than as a Blu-ray transport.
Streaming music has come a long way but it's still a rapidly evolving field with myriad different manufacturers, protocols, streaming services etc and licensing agreements between them all. To this end I'd be loathe to drop any serious money on a deluxe streamer since you can never really be sure if it will be supported long enough to get proper value out of it.
I'm more in the mind to spend the money on the DAC and less on the streamer: the former is likely to remain useful for as long as you need it, the latter can be swapped out if the landscape changes. I appreciate that the OP stated he has a Rega DAC-R so only needs the streamer in any case