All full silver + Furutech rhodium systems

Those of you who are privileged to have an audio chain (starting from the wall) with all full silver cabling, interrupted only by Furutech rhodium (or equivalent) connections, I have to ask… Is there anything left to be desired in terms of signal transmission?

I understand that carbon nanotube cabling is “not available” and superconductors are too unconventional even for an audiophile working at CERN. (If you know of anyone ever having ran a high-end setup with cooper pairs, please mention)

Is full silver coupled with Furutech the most reasonable albeit still costly aphex in signal chains today?

Well…? Is there anything better yet?
Monocrystalline, treated silver with rhodium plating on any part exposed to air.

What am I missing? Why don’t people have such systems?