Hah! The 'oxygen-free copper' thing!! The reality is oxygen free copper is only an advantage at the manufacturing stage, as it allows them to draw the strands much finer, making the finished cable more flexible. It makes no different to the sound! Oh, and that's scientific fact, not opinion... ;0)
I like the idea of the oxygen-free listening area, though - but it would be more interesting if they used helium rather than nitrogen!
The beer mats and gaffa tape must have taken years of research to perfect... not to mention the beer needed to sharpen up the mind!