All of those small companies they have life exactly of the on site life of the owner. VK is now almost 80 and definitely doesn't want to be bothered.
On MOST CD-players if not all, re-greasing the tracking gears and cleaning laser lenses will do the trick no matter how expensive they are(were).
I still have CD-changer from 90's that I do that every once in a while as a routine surgery.
Getting to the tracking mechanisms can be sophisticated on some units, but after doing proper homework, you quit being helpless.