Point of higher priced streamer?

Maybe the differences I hear between my Pi/Digi+ SPDIF and M5 are related to the quality of the power supply used in the M5 vs the iFi switching power supply I use with the Pi; I don't know...   Using a Pi with the Allo DigiOne Signature SPDIF board and a good quality linear power supply to feed the clean side of the output would be a great comparison with my M5 or any more expensive streamer.

I've read various posts here and on audiophile style about reported improvements by replacing the internal Lumin U1 Mini power supply with an external SBooster.    The Hans Beekhuyzen Channel on YouTube has a lot of interesting videos/reviews about streamers and power supplies.

Once I recharge my audio funds I would like to try a linear power supply with the EtherREGEN.   When I had the RME ADI 2 FS DAC I was shopping external linear power supplies and Teddy Pardo, Paul Hynes, SBooster, Uptone UltraCap, and Farad were all on my radar.  I ended up selling the RME before I purchased one for comparison.   RME's opinion on replacing their stock supply with an upgraded linear supply can be read here: https://forum.rme-audio.de/viewtopic.php?id=28734 ; it's about what you would expect, similar to this thread...

^^ That's a forum, I saw 2 posts by admin where he shows very little patience with the notion using a different power supply changes SQ. 

Some good info here on streaming.
https://www.theabsolutesound.com/articles/how-to-optimize-digital-streaming-with-optical-fiber

I broke down and bought the UltraCap LPS 1.2 based on the comments here and the ASR links posted here. Let me see now if that was money well spent.

https://uptoneaudio.com/products/ultracap-lps-1-2?variant=6075727314979

The LPS-1.2 is a single output, 1.1-amp linear power supply intended for powering a wide range of audio and computer devices.  Examples include: UpTone's own ISO REGEN, the Sonore microRendu and ultraRendu, SOtM streamers, small DACs and headphone amps, USB>S/PDIF converters, specialty computer USB cards, SSDs, fibre media converters, PS Audio LANRover, SqueezeBox Touch, etc.

I was about to get the EtherREGEN but held off. I want to do a bit more research on this one to see if it worthwhile sound wise. I also want to see if it is possible to output from the EtherREGEN to multiple DACs or streamers in my system. I will have a Rendu streamer into 1 USB DAC and an Ethernet stream input with another DAC. Both connected to my preamp at the same time.

Can we list some LPS for the streamers. I am ready to buy ne today if I can get a list streamers to consider. Something for the microRendu would be ideal but for this thread any LPS.

I lived with my microRendu powered with an ifi iPower (meh) for a while before trying a SGC LPS. I didn't feel the need to look any further.

https://www.smallgreencomputer.com/products/7v-linear-power-supply?variant=12730873053218

If there is missing data there would be highly audible effects.

How the missing data in spdif flow would affect SG is not clear to me, maybe someone else could open this in more detail.