Because they are coming via the factories in China. They don't know what is and what isn't popular. They make what molds they get access to. They sell what scrap they have access to. They spam everything they can get. A lot of this stuff, I saw years ago, like right after the event. And that Pin Trading Stamp set was talked about here, years ago too. I wanted the Dateline Disney mystery set, and I saw they were being sold super cheap. Now, I don't know what is cheap because it was unpopular and what is unauthorized. I was looking for something on Ebay earlier and I saw the usual subjects selling this Ariel pin. I don't know if they are selling more from this set, because we were having a busy day.