Got 3 racks of various miners, KNCs, Bitmain S1s and SP-10s.

The SP-10 is the most professional product I have seen any company develop, this is what I expect when paying what amounts to many years of salary to just get one piece of technology.

No way would Dell, IBM, etc would release a server that they did not actually custom build.  Now with KnC the BTC difficulty was low enough that all October and November orders ROI in Bitcoins was very real and possible.  That is the point, to mine in order to get more BTC than spent otherwise we should just keep the BTC until the price goes up. 

For those that think ROI is part of the expected BTC price increase then they are not looking at reality.  In fact John from HF told me, (B1 buyer, burned very bad), "Look at the price of BTC now!  When we deliver your machines (said in early December 2013) which is estimated to be in just 2 weeks! (Direct LIE) that the price of BTC being so high you will make your money back because the value of bitcoins has gone up so much.  (again Btc in < than Btc out is True ROI even if btc went back to $1)".  Then to add a cherry to the top he said, "We will ship your MPP cards with your order, guaranteed!" I think John needed to lay off the coke.

Anyway, this level of professionally produced machines are what I expect when spending 50-75k in an order. 

KnC got a pass on very bare bone cases and miners because they were able to come out before everyone else with higher such a high GH per machine and also the best Gh/Kw at the wall at the time plus KISS with their product.  That meant that who ever had any of their Oct-Nov batch has already made more BTC than they paid in just 3 months, especially since Hashfast didn't deliver and raise the difficulty same with CoinTerra delivering late and under spec.  KnC could have shipped a cardboard case and people wouldn't care, they only wanted that hashing power since there was nothing in comparison on the market at that time and only delivered 1 week late (I know, KnC is different now).

Back then "home/hobby" miners could get a few of those miners (with the extra hash power at near 550gh) and it was still viable for a home setup.

Of course I hope the best with Spondoolies and really want to count on them to be a truly honest and moral company but now the home miners need to have a lot more capital or other funding otherwise or DC hosting as normal houses will not be able to run even 1 Neptune or one SP30 without major upgrades to 220-240v.  At that point, heat is a large issue, normal house AC will not be able to handle all the heat.

So for a "home rig" to be profitable, power has to be cheap, cooling has to be efficient and cheap, issues of sound and air flow must be taken into consideration and at least more than 1 or 2 miners, you would need more like 5 SP10 and 5 SP30 to really even make a dent in the difficulty and make all the extra work and cost of installing infrastructure worth the return on mining.

At this point having 1th of mining is not to different than 2 BFL Jalapeno running at ~10Gh in total which made about 2-3 BTC back when they finally delivered.  Since no other Asic companies had made large deliveries even the almost 1 year late BFL machine made BTC ROI in about 2 months.

Now 1Th won't generate a single BTC for a week or more, you need more like 10Th to even get close to 1 btc a day.

So I hope Spondoolies changes the playing field and lets people get back in the game.  Only thing is the heat that these generate from the bottom, I would rather have a 2u unit and more heat sinks stronger fans or I still have to keep them about 4u apart from each other because of the heat.  Even if I attach a copper cooling plate with a closed loop R134 coolant and compressor that would cost about $300 per plate, setup for the copper and more power to run the compressor.

Just my 2c, keep up the good work though.