Beware of Amazon Marketplace
I bought a 32GB MicroSD card through an Amazon marketplace seller on a deal posted here. The card of course was counterfeit, the vast majority of the high capacity Micro SD cards are fakes, it's so easy to do and so many people don't notice. I assumed that Amazon would weed out bad sellers and that buying through them would be a measure of protection not found in the wild wild west of Ebay. I was completely wrong, the Amazon marketplace system is rigged to protect bad sellers and outright thieves.
This seems astounding to me, but I've verified it with Amazon. In the Amazon marketplace, sellers themselves have tools to remove negative feedback left about them. They only can only do so on issues that are "resolved", so they can only do it if they have issued a refund and officially closed the matter in Amazon's eyes. So they can, under Amazon's system, rip off a million people by selling counterfeit products, issue refunds to the people that notice and keep the money of the people that don't. Sell a million fake Flash cards, get 500,000 complaints about the cards being fake (it would be less than that, most people wouldn't notice) issue 500,000 refunds and keep the money from the other 500,000 suckers who didn't notice. Not only is that allowed under Amazons system, that seller could then nuke all 500,000 complaints about them, remove every bit of negative feedback and maintain a 100% seller rating. And the people who left the negative feedback would be powerless to warn others about what's happening. In short, the Amazon feedback system is completely fraudulent and useless.