Les, Metronome Kalista Transport (I have one) and I think Oracle CD player, has CDs spinning plainly visible, just like a Turntable with a clamp (mine is clear so you can look at the spinning spindle even) in the middle.
Odd statement at the end...

"Most older turntables have a feature that allows users to replace the cartridge that controls record playback quality, a feature that might be important to audiophiles. Newer models are often outfitted with ONE STANDARD CARTRIDGE THAT WON'T ALLOW THE SOUND QUALITY TO BE ADJUSTED." (Emphasis added.)

Are they refering to those cheap little Crosley players? Otherwise it's a very odd statement.

Regards,
Tom
After attending anything like Stadium Rock, I want to take a shower to get that essence off.