DO NOT BUY THESE ASICS!!! I keep telling you people!
Right now, at 13.4 billion difficulty, a 500 Ghash miner will get you 0.01868 BTC per day! That's it!
And when the difficulty adjusts to 17.1 BILLION in 3 days, it will make 0.01471 BTC per day!
As of now it'll be 16.6 in 2.5 days.
M