1) until recently I thought the cable issue was overrated
2) I thought my interconnect was really good, for various reasons
3) initially, I was only interested in another interconnect because changes in rack/system configuration require a longer cable (1.5 m instead of 1 m)
4) the ZenWave Audio D4 interconnect is, in high-end terms, extremely cheap, so there was no 'pride of having an expensive cable' for me
So no, there was no bias towards a 'fancy cable' involved for me. Still, I found very profound improvements by the ZenWave Audio D4 over my Monster Sigma 2000 interconnect, so I bought it.
I do agree that careful adjustment of SPL at the listening position, especially when listening to active components, is absolutely crucial. Often just a 1 dB increase in volume can make for a perceived 'better' sound.