That's my point too about no point debating on such a hot topic.
Long time ago, everytime I auditioned expensive electronic gear and speakers, or live classical concerts, I would get disappointed with my own electronics and speakers when I got home.
In recent years, that changed, as my stuff are way better now, not super expensive, but are 2 channel separates that have verified specs that indicate they should be transparent enough. In my experience, for audibly better sound quality I would use DLBC and stick with high quality recordings (streaming, or purchases from the lines of HDtracks, but not electronics and speakers that cost more than $50-$500k (auditioned a few of those recently). That's just me, and I am aware that others may believe in expensive interconnects, cables, power cords, power conditioners, even isolating feet too, let alone electronics, would make obvious differences. People are just different, and it is often easier to agree to disagree for good reasons. Just case in point, one thing that may be easy to literally agree, is that a $400 integrated amp, let alone a $300 receiver will not sound the same as a $5,000 AVR or a $4,000 pair of separate pre/power amp. Point of diminishing return likely is applicable here too, and I'll just stop right here.