Quote from: QuintLeo on October 04, 2017, 07:46:47 PM

Quote from: Ericgw on October 02, 2017, 02:16:15 PM

Hello everyone,

And that most people do not factor in other important expenses such as:
3. Replacing machine in approx 12 months when newer technology and mining difficulty increases make it redundant

More like 2 years RIGHT NOW, and ballpark 4-6 years AT WORST after that.

The days of "new miner tech with major upgrade in efficiency every 6-10 months" DIED when the S9 was released on the CURRENT STATE OF THE ART SEMICONDUCTOR PROCESS NODE.

Mining now has to wait for NEW nodes to see significantly higher efficiency, just like the rest of the semiconductor world.

Labor? If you can't run 30 machines yourself, you shouldn't be running a farm.
Takes me perhaps an hour MAX per day to keep my farm up - and I'm IN that ballpark on rigs.

Per sidehacks comments about voltage adjustability - pretty much died with the Spondoolies SP20, when almost everyone finally followed BitFury's lead into "string" designs to drop the cost of the miner (at the cost of adjustability).
IN THEORY it's possible to run a string off of a buck, but I don't know if anyone current other than Innosilicon does so (and I'm not sure if THEY do so in the A4 or A5 or upcomming A4+).

Great info, thank you very much