Quote from: zvs on March 09, 2014, 05:15:00 AM

Quote from: jseppeli on March 08, 2014, 07:56:41 PM

Quote from: zvs on March 08, 2014, 06:48:54 PM

Quote from: jseppeli on March 08, 2014, 06:44:04 PM

Cloud mining on PBMining has worked well for me
- 0.0089BTC/GHs. price adjusted at difficulty changes
- Weekly payouts
- Good customer service
- Refferal program

5 Year Mining Contracts at PBMining: 0.0089 BTC/GHs!

Uh, maybe if that 0.0089BTC per GH (!) is for two years?... in one year you should expect to net about $5 from it.

ed: Oh, I see... it's 5 years. OK, then it's about break even... you'd earn next to nothing in years 2-5, but it should be enough to cover the initial cost...

well, not really, because of inflation and better investment opportunities

not to mention the huge leap involved in assuming this place will be around for 5 years

ed2: if it was more profitable to use it then to sell it to chumps, that's what they would do. just sayin.

using http://bitcoinwisdom.com/bitcoin/calculator
Diff increase +20%/increase
Pool fee 0%
Power usage 0
GHs price 0.0089

That gives you a ROI @ about end of this year.

It looks like next diff change is going to be ~10% so that helps shortening the ROI a little bit

your difficulty adjustments are way off. +20%? over what? a month?

if you look at the last 6 months, the average is more like 60%.

that gives you a little over $1 in 12 months (*or more like $3, it'd be $1 if you started next month)

i was being generous with the difficulty level earlier. i guess we can be generous again and say that the current difficulty still has 2 more weeks. you'll make $1.25. after that, you'll make 0.9375, then 0.70, then 0.53, 0.395, 0.296, 0.22, 0.167, 0.125, 0.093, 0.07, 0.053, 0.04, etc. So, no, you never make your money back.

and even if you did just barely manage it, you'd be better off investing in something else.

(& just looked at first 8 days of current diff level, looks like a 20-25% hike to me)

the 20% i have used is +20%/ difficulty change
http://bitcoinwisdom.com/bitcoin/difficulty says +12,54% at next change and http://allchains.info/ says +9,09% for next change
so I would assume it is 10-12%