We shouldn't demonize all private resellers of the miners (like for example on ebay). At the end, it is a matter of trust and integrity.

In my country however, it is almost impossible to buy from ebay.com as fees to Europe are a killer. Ebay.co.uk has no fees, but ridiculous prices, something like x4 or x5. Local reseller websites are full of scammers. So for me for example only the official vendor is the choice. Which reminds me that Bitmain hasn't released anything in more than a week (usually they drop something every week).