ASIC development on SHA256 has been going on since 2011, with about 4-5 process node updates and 2-3 generation updates in between nodes.

Development for other algos is no older than ~2 years, and these all probably started at the very cheap 90nm node, so its very easy to get a 6x gain going from 90-45nm.

Its a little harder for SHA256 to see huge gains going from 16nm to 10 or 7. Bitcoin ASICs have pretty much caught up with the latest node tech, so there wont be any more crazy gains in the future.

Altcoins got 50% of market capitalization, how can they "suck"? Actually there are just a lot of worthless coins, but some alts are really world-changing.

As I can see in some altcoin now it's not suck because some of coin in altcoin have big potential to grow in the future maybe that time altcoin is not full develop for ICO like some scammy project but not all is suck in altcoin.

Wait for the new gpu, but get ready for it's high price.
But if you cannot wait, 1080ti is the fastest gpu beside the workstation class gpu
like the vega or titan. Even an used 1080ti card price is still high.

Windows does not support more than 8 same cards....  How is yours working?

Approximately gpu was last for one year, then manufacturer releases new one, how apple realeses new iphone.
Igf you have high end class videocard he can run games for 3 years. What with mining i dont know, i am not to long in this game

If you experience loses because of altcoins, don't be mad because it will happen due to your taking the risk of investment or else maybe because of your negligence. Because if you monitor your investment clearly and if you review the ability of altcoin you can choose it is impossible to happen.

Moreover, you just review and monitor your investment because if you can't do that you will not notice that your coin are possibly dissolved without knowing. Therefore are you sure that your altcoin site to invest is legit? nor I think the problems is site not the crypto altcoins, because I never heard any altcoins that vanished immediately into crypto industry.

So, to recapitulate, the most important things are the temperature that should be around 70°C, and then the quality of the PSU ? I'm not mining actually but I'm looking forward to it.

I have 18 sapphire r9 390 nitro working for a year. I had problems just with one card but during July when the temperature outside was 40 degrees Celsius and the card had around 80 degrees. Others are fine. Now the temperature is low and they are just fine with 80% fan.

why would someone buy altcoins if he is not a trader nor a cryptocurrency expert? Wise guy has to analyse the market and knows when he should buy bitcoin, or when he should buy a specific altcoin. Of course every man can not do this properly but a wise does not cry when he loses money because of his own incorrect analysis.

 R9 290 thermal limits at 94, on the reference-board design.
 NOT a good idea to let them get that hot though, they're a lot happier for the long term if you can keep them down to around 80.

 290 is still a good ETH mining card, though I'm not sure that's the BEST option.

I'm building 2 new 13x GPU rigs. I already have 1 rig like this that I'm using 2x EVGA 1300 G2s but actual wattage is a little under 1700watts. Obviously a 1000 watt & a 750 would work, or 2x 850s but not be as efficient.
So I'm wondering what would be the best combination of 110v PSUs if not 2x 1300 (sold out & higher price now)

Thanks for any suggestions:)

Of course it's getting pumped because of all the news about mining profitability and hard fork fud.

Ofcourse. Whenever gpu mining for eth finishes, price will start climbing faster and faster. Eth is still one of the most promising altcoin.

how can you be sure that Ethereum will go up?

It seems like it is 100% dependent on the ICO volume to even maintain its current volumes. Eth = ICO coin only, these days

Is this ASIC only?

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Sending GPU rigs sounds VERY cost prohibitive

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Having x11 or scrypt miners shipped direct to you would work or a group sell..even better.  Like cloud mining but 10x better.

 I'll believe that claim if I see it. There is no way they could DOUBLE the performance of a GTX 1080 on ETH while leaving it on GDDR 5x (excessive latency issues), and even if they moved it to GDDR 5 (not X) I doubt they could get it to 50 even with super-upgraded memory timings.

 On the other hand, I've seen 30% power savings quoted for the GP104-100 - THAT seems possible, especially if they "factory undervolt" it at all compared to existing GTX 1080 cards.

Pointing the entire farm to Nicehash ZEC for a week of bliss.....

I am speechless what people pay to rent equihash....

I wish I have a massive 1080Ti farm....

Agree. You'll never know what will happen with Bitcoin's value as time goes by. There could exist a point where its price would massively decline, because of dumps or panic among Bitcoiners. In effect, this could make you lose your investments in Bitcoin if you've relied on it as your single asset.

That is why, it is recommended to never put all your eggs in a single basket, but to diversify your investments into other cryptocurrencies. Thus, as soon as you reach profit with Bitcoin, you could sell it for cash or invest it into Gold, to protect your investment from any undesired situation.

Always prepare for the worst possible scenario with Bitcoin, by making the right decision with your investments, and stay safe in the highly volatile cryptocurrency markets. Just my thoughts. 

yea , this time it will reach under 50$ or near it