I'm wondering about if Butterfly still worth to buy specially after Bitmain release the S5+ and S7 Antminers with low power, seriously i'm thinking of buying some boards of Butterfly which can mine with hashrate of 600-800 GH/S but i have no idea about how much will it costs me to buy 10 TH/S and can i use it all with just one Laptop ?

Feel free to tell me what do you think ?