@daveyf - I think the OP does bring up a great point. I frequently read where "audiophiles" have their specific "audiophile" recordings (e.g. Diana Krall) they use for auditioning. I have several as well, but they run the gamut of my listening tastes. IMO, using the former approach leads folks into choosing equipment tailored only to specific music genres (e.g. female vocal, jazz, acoustic). Sounds wonderful with that limited material, but not optimal for other genres.
Secondly, a number of folks here have stated their inability to enjoy music that isn't perfectly (in their estimation) reproduced, to the extent that they, for example, can't ever enjoy music in a vehicle. They have *IMO* lost the ability to just enjoy the music itself, and are more interested in / moved by the reproduction than the music. Not to say that better reproduction doesn't, or can't, enhance the musical experience, but if you have to have the best or you can't listen, well I think you're missing the point.