Taking a step further (or literally back) for power cords: one could contemplate to remove the AC male plug (be it copper, gold or silver or rhodium plated) and wire it directly into the wall or power conditioner (though that is not conform with the building code). Is in this case a connection less, a better power connection? I would say so, what say ye?
Xti16, I for one am not that concerned for the diminished value as I don't change power cords that frequently. Valhalla could be passed down to the 2nd system if one happens to like another brand/model. A new manufacturer offering a paradigm shift in price/quality may be likely (and I hope for it to happen), but then again someone could come along offering components in other categories, e.g., sub 1k amps that obsoletes current 10k+ models.