PCIe systems need 26A minimum, on a quality single rail 12Vrail and you clearly only understand nominal amperage quality rather than the other key quality inidcators such as MTBF temp, capacitor quality, PFC active/not, double ball bearing 140+mm fans, waranty 5+ years,
I'll be honest, I've read that multiple times, and the first part of still makes ZERO sense to me. I'm not sure if it's the word choice, or misused/not used punctuation, but I can make neither head nor tail.
Also, I am aware of things like capacitor quality, PFC, fans, etc. But I just didn't think it was necessary to put it in the post... Also, you say "140+mm" fans, but I'm not sure I could find a fan above 140mm in a power supply, although feel free to prove me wrong about that.
Warranty time isn't a very good indication of quality, to be honest. OCZ for example have a 3-5 year warranty on all their power supplies, but for the most part (apart from a few exceptions, like the OCZ Gold, and the 400W CWT built units), they're nothing amazing, and use an FSP Epsilon build for their most popular units. This platform isn't great at all for power supplies, especially with higher voltages. If you load a 700W StealthXstream based on the FSP Epsilon platform to about 550W at 40C, you're going to see voltage ripple barely in spec, load it to anywhere near 700W at about the same (or higher) temperatures, you're likely to see voltage way out of ATX Spec. That has a 5 year warranty.
Capacitor quality is obviously very important, if you were looking for an in-depth explanation (I can't really provide one), then I'd suggest the following site:
http://badcaps.net/ - it has a wealth of information pertaining capacitors. Nippon Chemi-Con are commonly used in Corsair power supplies, and are of very high quality.
Fan size isn't really an indication of quality, either. Technically, the better performing the power supply is (at least in terms of efficiency), the lower size/speed fan you'll need. For example, the best performing (pretty much) power supply to ever grace JonnyGuru's labs was the SeaSonic X-650, which clears gold level efficiency and has a 120mm fan, but is rarely used, due to its high efficiency.