I doubt S4s will become unprofitable in the short term. Its maintenances fees are not even at 90% yet
Agreed. It's currently the most profitable option on Hashnest, and is sitting at a ... 68% maintenance fee. It will be a while before it gets phased out, unless BTC prices drop significantly.
Care to show why its more profitable than the S5? because I would have to disagree with your statement.
It s more less the same in terms of profitability. The only issue is which of these two will be impacted more when S6 gets out in terms of price.
In order words, which miner ll suffer more price reduction.
not really, there is a pretty clear winner no matter what difficulty adjustments are. Its the S5 in case anyone is wondering.
I am sure when the S6 comes out there will be a temporary decrease in price, but it will jump back to the level it should be at quickly since the price of the other offerings don't really rely on the price of any other offering.
The S5 is more efficient, and therefore more profitable,
only if you are are personally hosting the miners. If, however, you are purchasing the GH from Hashnest, the S4 is more profitable because the price per GH and the cost of maintenance is currently less than that of the S5. You can feel free to disagree, but the neat thing about Bitcoin is that its reality is dictated by math and nothing else. ;-)
If you feel renting S5 hashrate makes you feel fancier, have at it. When it becomes more profitable to use S5s on Hashnet, I'll move my holdings to that column. Until then, it's the S4 (
and the math) that adds up for me.
Actually, I ran all the numbers based on the current price and maintenance charges for various difficulty percent changes, and every single time the S5 had higher payouts in the long run. So you are right, the math tells the correct tail. By your logic btw, the S3 is better than the S4 based on current price and maintenance fee.
Also, I asked for you to show your math on why the S4 is more profitable, but you haven't, if your only basing it off of the fact that the maintenance fee is not off in the same proportion as the price, then you are not capturing the whole picture and will not make as much money as you can in the long run.
I linked to the math, above. I'll do it again in longer form:
http://nextdifficulty.com/#roi. Difficulty has zero bearing in this, as we're working with the cost of each GH unit, which will mine exactly the same coin regardless of which chip you are using.
The important factors are the market price per GH of both machines, the cost of electricity (maintenance fees) and the take home after we remove the maintenance fees (which are converted from USD, so you have to take the conversion into account as well, it obviously changes daily). The S4 will return (based on current market price and maintenance fees) your original investment sooner than the same math on the S5. You're paying a premium to use the latest gear, which doesn't make sense to me in a cloud mining environment.
In the long run the maintenance fee will knock the S4 off the curve, but currently it's the best bang per GH at the current market price.
If the fees increase because BTC drops,
or if the market price increases substantially, then the S4 doesn't makes sense. That is not the case right now.
Either way,
you do you. My ego can handle it, I promise.