Right. Lamp cord for speakers in 1974, monster cord for speakers in 1977, AQ, Cardas, and all sorts of stuff at greater and greater prices to follow. Given the ego and money in the high end, there are plenty of flies to catch. That little dab will do ya of THD (or whatever it was) got me to match equipment much more carefully as a result, since I wasn't about to toss THD into my system on purpose (kind of killed tubed amps but not hybrid pre-amps for me). I went from '02 until '18 never spending over the minimum on a cable or believing in differences once past O2 free cable and solid connections were an issue - until that silver plated digital coax stuff showed that it was quite different - even on blind testing...? I have another digital cable that's 75/2 ohms, and yeah that's clearly different but not better too. Not planning on changing my Canare speaker wire or Belden balanced. OTOH thinking about building a DIY silver plate headphone cable. I just got done rebuilding a 1990's Denon tuner, and some of those Silmic II caps sure sound a lot better. Just goes to show that some stuff really sounds different and some doesn't. If I had a pair of Scintilla's I could expose lots of differences.