You have good points, but today's equipment is not pushing more power than McIntosh stuff did, even 30 years ago. I have an old McIntosh amp I use in my HT setup, for the main speakers, which is 200 wpc into 8 ohms, and 400 into 4 ohms...continuous, capable of even higher peaks. And it wasn't even top of the line way back when. Mac had 1000 watt monoblocks 15 years ago. (I'd love to have 7 of those in my HT, and so would my power company)
Nobody is running any more power than that now, and even if they do, they simply need a larger wire to push it through.
Speaker technology isn't significantly better, either. McIntosh and other high-end speakers from 15 years ago still stand up to today's best very well.
The point is, Russell's article is not based on some old-timey, 40 wpc tube crap. It has older info, and it has newer info, too.
I totally agree that very cheaply-made wire might not be as good as some slightly-less-cheaply-made wire. Russell even mentions that in his article, complete with a picture of some wire from China vs. another kind that is supposedly the same guage...the Chinese junk is much smaller. Look under the "All Low Cost Wires Are Not the Same" part of his article.
Speaker wire is all about one thing: Resistance. If the wire is big enough to carry the load you're sending through it, then putting a bigger wire or a more expensive wire is not going to make things any better.
And yes, he does discuss long wire runs in his article. He actually has a chart with recommended sizes of wire for runs up to 200 feet.
If you can show me a few TRULY scientific, double or more-blind tests of some actual, audible differences between
different wires that have the correct resistance for whatever system they're installed in, I'd love to read them.
Just listening to a system, then replacing or rewiring it and listening to it again is simply not a valid test, no matter what anyone THINKS they hear.
Roger Russell is a legend, and he is still designing high-end, 15k+ speakers today. Heck, even now, McIntosh's top of the line speakers are basically just re-works of his older designs, and their latest incarnation was recently called by one editor the "best sound he's ever heard".
So to say his results are based on 80's technology is inaccurate...he is still up to date, and his article even references some wires that are like 5000 bucks for 6 feet or so.
I'm pretty sure they didn't have wire that expensive in the 80's.