Whilst not arguing your point about spring quality, the spring weight "number" that people are quoting; is just a measurement of how many kilograms of force is required to compress the spring a certain distance in cm or mm.
As for quality, there are definitely different grades of spring steel, and also country of origin has a part to play (Chinese; generally garbage in consistency & uniformity) and whether progressively wound (tightly wound at one end and looser at the other) or linear, definitely changes the "feel" and behaviour of a spring.
Also regarding the percieved "quality" of BC's etc; I've been using BC's for over a year now, the damper rates and spring rates are well matched, the construction, finish of machining and coatings is excellent, and there are numerous threads on other forums of specialists who've pulled them down to inspect their internals and they've come away impressed.
While I'm not suggesting that they're comparable to the icons like Ohlins, Drummond and others, they are also vastly different in price. There's little justification for using such an expensive product in a "Street" car, and although people do (which I have no problem with) I think it's a mistake to look down on so called "budget" set ups, just because they don't have a premium name.
For the money you pay for BC's; you'd struggle to buy better without another thousand dollars, IMO.
Oh, and Lol @ "Kid-pan"; that's where I'd be...