Remember that BFL has dropped their price for the 50GH/s Single, from 2500 to 1750. BitcoinX hasn't updated this yet.

Also, the size of your operation doesn't matter when it comes to break even. All that matters is price, hashrate, delivery date, and power usage. The difficulty and future earnings are largely out of your control. The BFL Singles can be delivered now, and have pretty decent power efficiency, miles ahead of those 35GH/s ASICMiner Cubes that seem to be selling like hot cakes.


You can successfully mine (and make a profit even!) with less than 1TH/s, so I don't know what you're talking about. I would say the majority of people here are running less than 1TH.

Those 2TH Black Arrow look pretty awesome, but they're scheduled for delivery in March of 2014, not February. And yes, who knows what the difficulty will be in 3-4 months, but the best time to mine is now, not when the difficulty is 6Billion.

I'm not saying BFL is the best buy around, but you need to look around, and look at all your options. What miner is the cheapest? What ones are overpriced? What ones hash at 5W/GH and which ones hash at 1W/GH? Is it being delivered now, or in 6 months? Weigh your options, and figure out which one you think you can make the most profit from, and jump on it.

Also, http://mining.thegenesisblock.com/ is your friend.