Except that most of the compression gained from mp3 is gained by removing frequencies we can't hear anyway
False. All you need to know to know that this is bullshit is to consider what happens if you have two point sources radiating the same signal. At some points the signal is doubled. At some point the signal is cancelled. Those frequencies you can't hear overlap with other frequencies you can't hear and with frequencies that you can hear and the sound is changed. That's why analog will always sound better than digital... for one generation, anyway. Obviously there are drawbacks to analog which have pushed us to digital. It doesn't mean you can just forget about the analog world, where we live.