Quote from: CanaryInTheMine on August 13, 2014, 02:23:36 PM

What am I missing? How does sp30 win any way you turn the coin?Max profit for each of the 3 calculations is what?

Next to nothing, I know. Sad

Quote from: CanaryInTheMine on August 13, 2014, 02:23:36 PM

Also, you are in fantasy land with 20% increase per month assumption. You should use 35 as bare minimum and with next increases coming, it wouldn't surprise me to see a LARGE jump soon.

Difficult to tell what's going to happen, the recent spike made a lot of people pretty nervous. 20% increase per month and 0.1% on BTC value definitely don't match the reality, calculating with 35% will nothing ever reach a positive ROI at all.

Quote from: CanaryInTheMine on August 13, 2014, 02:23:36 PM

Why is this important? Because of salvage value. How many people will want to buy your used s3 vs sp30? You'll get a marginally higher resale price with s3, not sp30

Agreed, the salvage value is not to be underestimated, and the SP30 will clearly loose here. Another matter to consider: It's way easier to put a bunch of S3+ on different power circuits than a single SP30 (our regular 240V circuits only have 13A breakers).

Quote from: s1gs3gv on August 13, 2014, 02:26:17 PM

The real question you might ask is why would anyone in their right mind spend over USD 3K in the hope of making a few hundred bucks after a year when there is so much uncertainty in the ROI equation.The risk/reward ratio seriously discourages any mining by people who have to pay retail prices for equipment and electricity.

Good question, why would anyone want to invest in mining hardware from now on forward? OK, some are just stupid, others may think it's fun (is it?), and the kiddies think it does not matter with something like "free engery" (THERE IS NO FREE ENERGY) in mind.

Quote from: s1gs3gv on August 13, 2014, 02:29:27 PM

How is it you don't pay VAT ?

Letting the company purchase and run the hardware (indeed works if you own the company Wink

).