I wanted to buy an erupter for testing with raspberry pi, when i checked last week there was prices around 20 dollar, and i think that is OK price for it as an testing device, becus you will not earn any money with it. but when i checked ebay today the prices have gone up like crazy, who pays 60 dollars for an 300Mhz erupter?
Your right, but the seller bought it for around 0.05 BTC, thats why such high price