Done with the discussion of measurements vs sensory perception.
Neither of us build commercially, I'm a curious diy, have been long building my own general purpose computers, thought I'd give music server computer a try. Bang for the buck is off the charts with diy music servers, commercial servers all use off the shelf motherboards with optimized OS, really not much more than that to most of them. They don't render well, lucky if they have nice power supply. My present server is combo off the shelf/diy, I don't waste effort on rendering with it, so impact on sound quality much less than the servers doing rendering, the thing is vast majority of off the shelf servers pay no attention to rendering, yet they charge like they're doing mass amounts of R&D. These guys likely have the greatest profit margins in audio, along with the cable guys. So, you and I may have something in common when it comes to marketing hype. Difference is I don't observe market hype with at least some of the white papers I've read, in these cases the particular person writing the paper doesn't have a product to sell using the technical knowledge they're expanding on.