To the OP’s three points:
1. Unfortunately, doesn’t hold true in my system, though I overall prefer one of two of equal price for most recordings. In other words, two most expensive were best
2. Doesn’t hold true if your connectors are clean. Also, cables, especially more complicated ones, need some time, which varies, to settle, so they sound slightly worse right after re connection.
3. To simplify, holds true in my system, but the difference depends on where you put them in the chain.
1. Unfortunately, doesn’t hold true in my system, though I overall prefer one of two of equal price for most recordings. In other words, two most expensive were best
2. Doesn’t hold true if your connectors are clean. Also, cables, especially more complicated ones, need some time, which varies, to settle, so they sound slightly worse right after re connection.
3. To simplify, holds true in my system, but the difference depends on where you put them in the chain.