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I Was looking to buy hashpower, and I almost bought the cointerra cloudmining services (200 GB per $999 for 6 months), but i found this another page, they have something more atracting 200 GB for 1 BTC per 5 years contract, take a look, if you register, please use my referral, so far, everything os looking good (0,011 per day with my 200Ghs)

http://pbmining.com

Mod note: removed affiliate link

I'm guessing you haven't read a single line from here:

https://bitcointalk.org/index.php?topic=484355.0

Just don't be surprised when sometime in Year 2 or 3, you get a permanent 404 error message one day when you visit their site.

After 1 one year, those 200 Ghs will not produce anything, so I'm counting just the first 180 days and I think I will make ROI in something like 100 days (this page says 97)

http://www.bitcoinx.com/profit/

Good luck on that, hopefully the returns continue on for you.  If they just magically reduce payments due to lower membership that would suck.

Too bad you can't sell back your shares or exit your 5 year contract.  Probably won't matter for you anyways.  Chances are PBmining won't be around much longer once the trickle of new customers stop signing up.

They have a high risk for being a ponzi scheme.

In short, the owner tumbles the bitcoin payout to hide the source, won't disclose any information about mining hardware, and admits that unless BTC value rises significantly customers probably won't profit.

If they pay I will make ROI

You are making a bet against difficulty. Payment or not, you may not break even. Why would you risk it when there are better investments?

I have played with some altcoins (without luck), and mining scrypt (not too much, but 4Mhs), also have some shares of CBCT (casino bitcoin, using havelockinvestment), what other investments you propose (i'm really interested, not trolling)? I'm from Argentina, buying HW is not an option here. I put 1 BTC, it's not a fortune, and I can get something in return, the diff is decelerated, i bet to that.

A lot of people say your best bet (Investment) is just buying BTC from an exchange and watching the price grow over time. Preferably buying on the dips!  ;)

BTW, I have 4 contracts with PBmining and think the advice above is the way to go.

Yes, the best investment with BTC right now is to buy and hold, in my opinion.

I bought as much as I can with my FIAT, but I think an investment in BTC that pays in BTC is worthed

Between preorders, ponzis, otherwise well-intentioned people with failed business ides, and just downright scams, you need to asses the risk vs reward. One of the reasons CEX.io is increasing is because they've beaten the risk game. Profit is not guaranteed, but there are no competitors in the space for risk.

CEX.io can fail too, like mtgox did it, they are all too young to build reputation, I had some contracts in Hashracks (they didn't start mining... big scam), Cloudhashing (another scam but I recover some of my money). I put some money on CEX.io too, but mined some days and sold my hashpower (several times, i made some money in this one). Also bought a share of a Titan. Lets see what happens with pbmining.

My post here might be of interest: https://bitcointalk.org/index.php?topic=484355.msg6728048#msg6728048

Interesting, thanks for sharing!

I have around 30 ghs with PB mining. I am hesitant to put any more into it right now. If they become more open with their business I would invest more because there have been no payout issues and customer service has been fast, but as others point out the business model looks unsustainable.  

I bought 200 Ghs, I'll wait till sunday to see if I buy more.

Hi, This is my first post so if I have broken any stated or unstated laws I will try to do better in future.  :)

About PB: I've bought 2 smallish contracts so far, joined in mid-March '14 and earned 0.308 BTC so far, I'm approaching ROI within a couple of months. With fluctuations in bitcoin value, isnt this an estimate anyway? My thought is: who's to say any cloud mining start-up will be around in 5 yrs? If I can make any profit within the time PB Mining is in operation I'll be happy. Right now there is somebody who has 28 TH who has earned 3.8xx by mid-week, not too shabby. If you join and buy a contract just make sure to send the exact amount - you will usually get your mining started real quick. GHs Price fluctuates depending on BTC fluctuation, as far as I can tell.

PBMining has been responsive to me when I was concerned about their website changing substantially. I too am skeptical of online joints but so far they have been real good. They have posted how much GHs they have available so you can see that without having to commit to a sign up. Only downside I'm aware of is not being able to sell your GHs back if you decide to get out. On CEX of course you can do that.

In answer to someone's question about PB vs CEX, one reason GH might be more on CEX is that they claim lifetime ops vs 5 yrs on PB, also you can trade and mine on CEX/GHash so those are good perks. Both sites have a lot going for them but be careful in how you manage your btc on cex. Had zero problems with PB so far (3 months). Hope that helps a little.

me too, i bought pb contracts around 4 months ago and make ROI + little profit
but since many users in this forum doubt with pb operation and pbmining answer not satisfy me, i decide to sell my account and go away from pb
from i joined until now, i never see pbmining show their hardware photos, it's make me curious ???

pretty good you thought,
but it's best if you have the funds would not be used in the near future may be good,
but if you traded funds are the funds used GHS everyday would be very difficult for a 5 year contract, and the funds can not pull anytime we want,
it should of course we looked pbmining, the view of each person is different,
I till now only survive on 19 gh / s on pbmin

what do you mean with "only survive 19 GH/s on pbmining" ?
did you sell some part of your GH/s there? so it's only left 19 GH/s?

Will they actually let you do that? How did you go about selling? I am note sure my 30 ghs would be worth much but I would lvoe to recoup some of my original investment.

yes, they allow us to sell our account
i see pbmining statement about it, maybe 1-2 months ago
you can sell it to other people, 65%-75% from current price of 30 GH/S would be good
i sold to my friend at 80% of current price

from the beginning I was just trying to join with 19 GH / s.
and all the rest of the funds I prefer cex.io
because if at any time I needed money I could pull it back at any time,

cex.io prices is horrible and you never make ROI there
only best trader can make profit there and now they impose trading fee, which make harder to make ROI
and if you sell your GH/s too, you'll suffer lose