Hey Stewie.
What'd you do...pick a couple of threads and pick the one that's most comfortable to your presupposition? LOL!
I really don't believe your original question is sincere. Your mind is already made up. Too bad. Given all the feedback and info available regarding the performance benefits of good AC cords, the question in your first post coupled with your response to Mr. Wolff reveals your lack of desire to really understand and your contentment with ignorance. That's okay...lack of desire and contentment with ignorance will probably save you more than a few bucks.
Here's a suggestion: If you're sincerely looking to see if good AC Cords could have any benefit to YOUR system, seems one of two things - or both - should be on your plate: Look to barrow or buy a good after market cord that comes with a return policy and/or, change the approach when you respond to someone who's trying to help you.
For the record and in no uncertain terms, I believe, and I'm certain others would affirm, well designed AC Cords with an appropriate design premise will serve as the foundation to not only the cabling system but the entire music system. And, there IS good reason for that. For the sake of you enjoying your music playback (my assumption) to the max, I hope genuine investigation regarding the benefits of good AC Cords matters to you someday.
Cheers!
Robert
RSAD