what I dont get it is: for 3.0 BTC I can get 12, reaching ~ 4.0GB/s, It isn't cheap comparing with the blade (5.5, I can get 13 GB/s), but if I look on ebay, a 5GB/s BFL is being sold for 5-8 BTC.. so there is an advantage on the block erupter that people just ignore: It's here and you can buy 1,5,30,50! I have one blade and one BFL, 14 lancelots and 20 erupter.. the erupter are the one that give me less headache. They mine, they are not loud, they work fine with rapi, I dont need ventilator.. they just work! I do 31260 GH/s all of them still profitable (I'm doing 5.3 BTC/m)...