AntMiner S2 1TH/s Miner (1w/GH/s) Batch 2
Price: 3599 USD ( 8.065 BTC )
AntMiner S1 180GH/s
AntMiner S1 - 0.893BTC
1000/180= 5.56
AntMiner S2 = 6 AntMiner S1
8.065 BTC > 6 x 0.893BTC
8.065 BTC > 5.36 BTC
so buy AntMiner S2 or 6 AntMiner S1 ?
will be ROI if buy AntMiner S2 or 6 AntMiner S1?
You also forgot to factor in 3000w worth of PSU, or something close to that if you intend on over clocking. My two S1's are pulling in over 900w combined.