Where are you ordering these directly for so cheap, through Alibaba? The knock offs is why its good to include a link to the product so everyone can see the exact item
No links required as there are many who sell the same originals on AliExpress and others there who sell the knock-offs. The knock-offs look exactly the same but without the etching on the face. Very easy to notice the difference. Besides, some may be willing to accept an inferior (but still acceptable) steel for the lower price.
I think if someone in China tried to market knock-off SR's with the Gold Dollar etching, Ningbo Gold Dollar would very quickly have their boys around to "correct" the matter. The Chinese can be like that.