mrc4u
To my ears, the inherent difference between a $1500 cd player and a five-figure cd player is better detail, microdynamics, through engineering.
Large margin here. I can report this information as I own both machines.
Comparing a $10K cd player to a $25K cd player will yield another degree of better detail, microdynamics, through engineering. Smaller margin here. This has been my aural experience via auditions over the years.
Happy Listening!