Would someone explain to me why this is a better deal than an S2? An S2 currently costs around $2200 with coupon (around $2.20 per G/hash), has only a little worse power/ghash, and ships about a week and a half earlier? Seems like the S2 is a better deal, even if 401 units are bought.
SP units are 2U and hash over 1.4 th/s.
Antminer S2 are 4U and hash at 1 th/s.
For some, the space is valuable.