I believe there is some merit. Most of it comes from the fact that high quality power cables are correctly terminated, don't tarnish, maintain tight connections, are properly ground and have decent shielding. I think you can get all this for a decent price. My view is, if I have a 5-10k piece of equipment, I am not going to quibble over a $20 V's $200 power cable. Now, I think your nuts to drop 2000,unless it's gold. If it's gold, please tell me where you live...
I built my own, using very heavy gauge furutech cables and connections. Cost was around 200 cable, seems comparable to cables several times this price. It makes a difference in my system. I would note that I have a equ=tech power processor.

Primary: MD600, MS200 (SpeakerLink to AES), Trinnov ST-2, Ayre V6-xe, Salk SS8 3x LRC.
Secondary: MC600 (whole house).
Zone one: 568.2, G57, MS200, Spatial Hologram M2SE.
Zone 2-6 (Awaiting assignment).