Quote from: Haihai on October 21, 2012, 07:51:43 PM

Quote from: miner2049 on October 21, 2012, 04:31:02 PM

I would like to buy a BFL ASIC miner, but I'd like to run the numbers once they start shipping and can give a reasonable delivery date. If the ROI starting in January is 260 days or so, I wouldn't mind getting a BFL single. The idea of getting a 100% ROI in less than a year sounds good.

How did you get such high ROI-%? My own calculations would give only around 30% ROI on first year.

If I use a BFL single with 60GH/s, costing $1330, 25 coins per block, 60w, .10 $/kWh with a difficulty of 90 million, it would take a year to make $1370.

http://ow.ly/eEb8O

So you would make back the money you spent on your rig. From that point forward it is profit less normal operational expenses. You could also amortize the life of the rig and perhaps even get a 100% value return from BFL when the next generation comes out if they are still offering such a trade in for an upgrade.