Until someone poisons the well by returning "unused" counterfeit cards to places like Digikey, anyway. It's dirty and rotten and illegal to convert fake cards into genuine cards like this, but criminals are gonna criminal.

(My own trick is to just buy cards from one of Microcenter's house brands. Their buyers know what they're doing (Microcenter's flash memory products are both excellent and priced right), and nobody is going to bother making counterfeits of them due to a lack of broad market appeal.)