Quote from: smooth on April 29, 2014, 10:31:47 AM

Quote from: bbxx on April 29, 2014, 10:29:00 AM

Quote from: BITMAIN on April 29, 2014, 09:03:46 AM

Announcement: Batch 4 ANTMINER S2 Sales Open
www.bitmaintech.com

Shipping on May 8th, Official price $2,599 for global market. Sales open at 20:00pm BeiJing time Apr 29th GMT+8.
Coupon Rain Notice: $400 off coupons are available for all previous S1 & S2 orders.

http://btcinvest.net/en/bitcoin-mining-profit-calculator.php?diff=6978842650&dcosts=3000&diff_mincrease=15&blpbtc=25&dhsmhs=1100000&diff_mincreasedecrease=0.5&btcusd=453.80&dpowcon=1000&btcusd_mincrease=0&pcost=0.2&calcweeks=16&dleadtime=2&action=calc#

1300 usd earned till unprofitable.
so it should cost 1000 usd...

where i am wrong?

1. Your power cost is too high. At 20c/kwh you probably shouldn't be mining at all.

2. You are probably underestimating the flattening out of the difficulty growth. That is just my opinion though.

If you tweak those you can make this slightly profitable. Not an amazing deal but okay. If BTC prices go up before these sell out they will be a better deal.

yeah key is btc fiat/diff jump/power cost . a jump to 500-550 a coin makes the machine less then 2100
then a second jump to 600 makes a profit.

I am heading towards summer if I buy this for 2100 . I have to pull a 2 or 3 blades. To keep it cool enough.
My summer power is 18 cents a k watt.