Hello,

I am relatively new to the world of bitcoins, but due to their increasing value, I have become more and more interested in getting involved. My question, on ebay, users offer bit coin mining contracts. One user says he will perform a 6 month 100GH/s bit coin mining contract for $600. He claims that this $600 will earn me $10,054 after the 6 months assuming bit coin prices remain as they do now. Would I be better off buying a butterfly labs bit coin miner 6.5-7.5 GH/s? I have free electricity at my dorm. Would I make more money with the contract or by buying my own miner and mining myself? Does anyone have any experience with the bit coin mining contracts offered on ebay? Any help is great. Thanks