Sorry I have to disagree. Many of the so called "myths" are things various folks have been able to distinguish based on auditioning, or experimenting with.
My Sony SACD at $(originally $3,500) $2,500 list (I paid $1,700 for a demo unit) has a redbook CD section that is clearly worth every penny as just a CD transport. (and was the reason I decided to buy it, based partly on reading about it in STEREOPHILE, and partly on the comments of members of Audioasylum.)
Some of the things you bring up seem almost ok, but then they are things I have no experience with, and so cannot personally say if they are real or myth. However I am certain many folks who post here could defend your so called myths as having a basis in fact, based on experience.
Another one: I have approx $3,000 in various cables (in use), and only about $11,000 in stereo equipment (excluding Vid and power cleaners)
My cable collection just grew gradually... and I surprise myself with the investment. But each has been well worth the money, and I hope eventually to try out some good Nordost... (that would boost cables to 50% of total system electronics cost)
(Though I probably will never buy any $700+ power cables.)