This makes it probably the only one mentioned you could buy and use several years then sell and not lose money.
In my experience every cable I’ve ever bought used I’ve been able to sell years later and not lose money. Most used cables can be had for 50% or better off new. I’m sure the Master Coupler is ok but there’s nothing special about a SR Master Coupler in regards to resale against other cables.
What is peculiar though is if you look at usedcable.com right now you will see there are 11 Synergistic Research power cables listed for sale....more than double that of any of the 18 other brands listed in their inventory. Makes you wonder why people are unloading them in such volume or why they can’t get rid of the inventory easily either. No opinion here...just stating a fact.
https://www.usedcable.com/power-cables.html