Shady, you are
applying analog tests of S/N to lossy audio. They are the wrong tests, as S/N ratio in lossy algorithms is NOT linear.
This is easily tested by listening to random noise of which the best example is audience applause, which becomes increasingly weird as bit rate is reduced. In a 128 Kbs file is sounds nothing like audience applause. There is a lot of random noise in orchestral sound, especially from the percussion section.
So yes a turntable will have a much better and more natural sound than a compressed MP3 file.
The take home is that the wrong parameters have been applied to testing lossy algorithms. The defects of lossy algorithms are serious and bother me far more than the defects of vinyl.