I thought it was worth it. I added a similar level Wireworld Coax cable for both the input and output of the Remedy. I decided that the power supply with the Remedy was fine, similar to the ifi iPower that I added for the Recovery.
I am a believer in a better level of cabling. Not the crazy level stuff mind you, but a better level. Even if it is not night and day I believe it just makes sense that a better power cable or inter-connects are worth it. A step up, but I do not feel my equipment is of a level to add the crazy level cabling...
I use Wireworld USB cables x2 to come from my Music Server (Highly modified PC) to the Recovery on to the DAC-10H
x2 Wireworld Coax cable coming from the Marantz SA8005 spinner to the Remedy on to the DAC-10H
Tributary RCA cables going from the Marantz to the DAC-10H for SA-CD disks
Wyred 4 Sound XLR cables going out of the DAC-10H to the SST Son of Ampzilla II amplifier
Monster Cable Y connector out of the DAC-10H to an Audio Technica RCA cable to go to the REL subwoofer
Kimber Kable speaker wires going to the MC speakers
Wireworld power cables for both the DAC-10H and the Marantz
Audioquest power cable for the computer
Richard Gray High Tension power cable on the amplifier (only because a friend with a MBL system was up grading so he pretty much let me have this extreme high level power cable
)