I think that your expert refers to the Lp as being an analoge medium.
Some people like the sound of the record more then a cd (cd to clean)
But there is a way of truth in it: Reading an lp doesn't need some kind of electronics to convert the music opposite to a cd where the da converter makes the difference.
On the other hand the turntable is very important: rumble and the rotation speed.
This has been a debate with no winner because it is just what you like best.