I remember wen the woolies folders come out that had the F word in them. I managed to get about 20 for $5 each or whatever they were. Sold for $40 each at the time.
Have seen the ridiculous prices for the dominos etc also when they came out, its a crazy collectors world out there and generally the staff are none the wiser. So no one can blame them.
I have promotional yoyos from various companies. Same theory. People go crazy an you can get the yoyos with drink purchases and sell them for more than it costs for the drinks