Wire is not wire. And crap does equal crap.
If the price is to good to be true then you're getting ripped. It could be built using copper clad aluminum. Use of extra thick insulation so they can use less copper. Less than optimal amount of strand count. The price of copper went way up. Even knuconcepts sells the cheap arse copper clad aluminum stuff unless you buy their top of the line wire. You don't buy products from some fly by nite made in tawain company. Look for deals from reputable companies. You'll get ripped off every time if you don't. There are lots of good deals out there that are made by reputable companies. Just gotta search a bit.