Hell, I threw 0.15 into CEX out of curiosity, left it in there for a few months, sold it and ended up with 0.23. As a purely mining investment, CEX is awful, but due to the pretty consistent prices, buying, mining for a while and making more than the withdrawl fee will almost certainly net you a profit.

wow, rare example for someone make profit only from mining
how long you mining there? and how much GHS prices when you bought and sold?

there have been maintenance fees for at least the last year.  they only account for the cost associated with electricity and maintenance, something we pay on our end when we mine at home

while the cost of mining eats into profit, in the case of Cex it doesn't completely eliminate profit.

if Cex GHS's weren't fungible - they can be traded back to BTC and or purchased in micro amounts - then you would be depending solo on getting back your BTC investment but since you can trade back out at any point, you have a much lower risk and at least for me, it has been better than just leaving the BTC in a wallet doing nothing

If you are likely to lose money because the price is likely to go down more than what you will get in interests it is not a good investment and your bitcoins are better of in your wallet!
Playing casino can give you a return in the short run but you are mathematically a loser when you play

Oh the irony of suggesting to avoid risk in a bitcoin forum

People see that the price is stable for days or weeks so they think it will stay stable and they can sell at a profit after a few days or weeks when the price is likely to go down at any moment and they are likely to lose when they invest
We hear the same thing with gambling : "i lost because i got greedy and didn't stop in time; if i could stop after winning a little bit i would be so rich"

Well the bubble is exploding! GHS price down to 0.006 and dropping fast!

maybe someone playing with it?
internal person maybe
i'll try your method, maybe i can make some profit there

Looks now it is stabilized again around 0.0067