yourfinalsystem: "Your system sounds only as good as the weakest link in your audio chain. Why spend thousands on gear to turn around and use a 5 dollar USB cable from China?"
I often try to demonstrate that language analysis itself is sufficient to detect a problem in someone's reasoning even when you're not familiar with the subject matter. Let's imagine I don't know anything about audio at all. Like, I can't even turn it on and play a record.
Quoted paragraph is where "cheap" obviously gets interchanged with "weak". And this is all you need to see. Just ask why they did that and try to see if it really is so.
Since the metaphor refers to chain, let's stick with it and see where it gets us.
Imagine a chain where all links are made of gold and one is made of INOX. Now, this is where your cheapest link is your strongest link.
Now imagine a chain where all links are made of INOX, but they were bought from different vendors and some are cheaper. Vendors of more expensive links say; yes, but it is not just the link that we're selling, it is a way of life. It is "more than a link". So they got more money although all the links are holding just fine.
Conclusion: cheap ≠ weak
Last time I tried to make this point was in >eargiant's "Audio path..." thread. The guy was completely wrong (if something like that is even possible) and he is totally into Snake Oil BS and I don't claim I know better or more. It is just that:
In his thread this logical fallacy occurs: different = worth few thousand bucks, as well as this one: different = closer to ideal.
Second logical fallacy gets debunked in the introduction to Toole's Sound Reproduction so we can leave it.
The first one, If I was to jump to conclusion, would make Equaliser unit worth something like 80 000$.
This is how; slight differences you can achieve with different composite parts or architecture contribute to sound signature. In no way does "sound signature" make one unit closer to ideal and thus in no way should it be implied you're suppose to pay through your nose for it (you shouldn't even if you like the difference). An infinite number of sound signatures can be achieved with an Equaliser unit. And let's say for the sake of the conversation that 800 of them are very pleasing to ones ear.
If you truly believe that slight difference in sound between 1000$ Yamaha and 9000$ A.M.I.H (stands for "amp made in heaven", a joke) is worth 8000$, then 800 pleasing sound signatures must be worth 6 400 000$ right.
I hope you see where I'm going. Of course it's not worth it. This is a debating strategy that marketing uses heavily. It is similar to manufacturing consent. It is like when someone asks you would you prefer to go to cinema at eight or at ten, never actually asking would you like go at all.
Whenever someone shouts "It is overpriced!" the strategy is to redirect the conversation into whether you can hear something or not. But whether you can hear something is completely irrelevant. Go back to what the guy shouted. He didn't shout "I can't hear the difference!" He just said it was overpriced.
Conclusion: different ≠ few thousand $ more expensive
and
Conclusion 2: different ≠ closer to ideal