Yeah I did the same thing...Bought 9 erupters at around €14 a piece and sold 7 for between €53-€57 a piece! Approx €370 return...My whole mining rig cost me about €270...) x erpts, USB Hubs, RaspPi, Keyboard, SD card etc....Kept all rig and 2 x Erupters.... Now mining for Peercoin PPC. The 370€ I pumped into CEX gh. For €50 (each USB erupter) I'm getting 3 x as much hashing power and can trade it in when I get bored. It's all a gamble. The BTC price is slowly but surely slipping....I just hope it doesn't die completely! I am tipping that at some stage massive support will be given.....If not only to protect the big boys investments. I think we are in a consolidation phase.