After seeing the number of orders on Cex.io for GHS above 0.05 BTC I thought I would put together some links to relevant information and tools to estimate the return on investment.
Before you buy any GHS make sure you do the sums to see if it is worthwhile.
Here are my calculations that show that people who are buying GHS with cex.io are set to lose more than they invest.
The going price is about 0.072 BTC per GHS.
According to this calculator that uses the past 4(i think) difficulty rises to predict the increase in difficulty, you are set to lose more than half of your investment.
http://www.coinish.com/calc/#To use this calculator to calculate the return per GHS,
Set the hash rate to 1000 (1GHS)
Change the currency in the investment section to BTC and enter the price of 1 GHS
Set the power requirements to 1.5 and the power costs to 0.3 as per
https://cex.io/maintenanceYou will see that considering reduction you stand to loose US$47 from an investment of about US$75
You can play around with the difficulty increase to achieve different results if you believe it is going to slow down.
However, it is hard to imagine it slowing down much if you will soon be able to get 1200GHs for US$7000, about 10 bitcoins, which equates to 0.0083 bitcoins per GHs. Almost 10 times less than the going rate on cex.io
http://bitcoinwisdom.com/bitcoin/calculatorThe historical rise in difficulty and the next predicted rise can be found at the link below. The difficulty is set to rise more than 22% next time.
http://bitcoinwisdom.com/bitcoin/difficultyIt is very unlikely that at the current price of GHS that you will break even let alone make a profit.
The over inflated price is probably due to the generous referral system where if you refer someone you get 3% times the amount of GHS they buy. That combined with a lot of people wanting to get in on the mining business makes perfect conditions to exploit Beginners. Consider the advice you receive carefully.
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What about at current prices? If CEX starts mining again, would the current price of GHS/BTC (.00077 as of now) be a good time to get in?
If not, then I couldn't wrap my head around how Cloud Hashing is selling contracts at such a high price. Look...
https://cloudhashing.com/bitcoin-mining-contracts