wrechedddddfragile, yes they are normally 60 or more anywhere else, cheapest I could find on ebay was like 50 and they had a shit ton of bids. thats why for 30ish bucks I could have a pair.
Another thing I don't understand is that they have a bunch of different kinds, lol. I would imagine that some are probably more vibrant / magnify better than others, but it seems kinda weird / shady to me.