Hi there! Fellow newbie miner as well.
From reading around the forum, Butterfly Labs is not to be trusted with pre-orders. They rarely ship in time, and have poor customer service and poor response to emails etc.
I'm hearing alot of positive feedback for Black Arrow Software, just because they're responsive to pre-order questions and they have a good forum presence here, and provide timely updates.
US Re-seller:
https://www.minersource.net/If you were to get 600 GH/s (or 6 X-1's) of Black Arrow Prospero X-1's at $352 a piece plus shipping, it'd be much less than your upwards of $3k setup with BFL card. If I'm not mistaken(55 W per X-1), the combined setup would consume less power and electricity.
That $5700 profit you quoted probably is what it'd mine right now. The difficulty increases every 11 days or so, plus all the Asics ship around Q1 and Q2, so the network hash rate will grow exponentially, also increasing difficulty.
Good calculators here:
http://mining.thegenesisblock.com/btcinvest.net/en/bitcoin-mining-profit-calculator.phpA popular opinion on these boards is to just buy and hold Bitcoins and hope for the value to jump up in 2014. Also, another alternative is mine altcoins like Litecoins, PPC, Doge, Name, etc, then exchange them for BTC.
So in other words, be wary of the Butterfly!
Don't believe me, look at the general forum consensus:
https://bitcointalk.org/index.php?topic=323857.0Good luck and Happy New Year on your Crypto-hunt!
Chuck
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