Even then, you're still off ~ 0.8 BTC-1BTC difference between the two options which is approximately eaten up by purchasing a couple adequate power supplies for driving the six S1's.

 Like I said, it's a very close call either way.

 I've moved onto Bitmain and A1 clones Love my BF rigs, and it's a pity we can't purchase more at a competitive price.

 Oh well.

 It is rapidly approaching the price-point where it will not make sense to purchase 6 x S1's, as you will need an additional purchase of at least two 1200W power supplies to power all six units.

 Given the S2 ships for $2094 (after $400 coupon application), and does ~1w/gHs for 1tHs total, it's not a clear decision either way.

 Personally, I'm starting to phase out all my S1's for S2's and A1 clones. Would be nice to acquire a Spondoolies unit in short order...

No. No reason to reboot them at all.

 The price is tempting me, as I previously noted.

 Furthermore, touching on your points about quality control, yes, I have read that the initial batches had some QA issues. I understand these issues have been mostly resolved in batches 2 and 3. This is why I'm taking the plunge with Batch 4 - I have faith they have largely resolved their initial problems.

 The dozen or so S1's I own have been rock solid since I took delivery of them, and further reinforces that faith in Bitmain.

Well, finally picked up one of these in the May 8th batch. The $400 coupon sold me on it... Good price @ $2199

 What is specifically not good ? My Qiangminer is working quite well so far. Look forward to purchasing another in the near future.

 If it's any consolation, I received an erroneous tracking number on their first try to provide one. A subsequent re-ping yielded a valid tracking number from Bit-Tech and I received my product about 4 days later.

谷歌翻譯為贏

Yay for Batch 3 becoming available. Boo for pricing not being competitive with A1 options out there Guess it's more A1's for me for the next little while...

 Ok.

 Asking 0.2 BTC including shipping anywhere in the continental United States.

EDIT: Sold

 I hope you can appreciate that a 10 post newbie making such an outrageously bizarre claim gives us pause.

 Your experience is not reflective of the experiences many people on these forums have had. I recommend you dig deeper into the history of this company before praising their customer service as "the best customer service hands down"; I can only deduce that you do not have much customer service experience dealing with other vendors, if you are rating this one so highly.

 Given the fact that there have been "thousands" of complaints (my own, included) as revealed in the most recent court documents, I would urge you to do more research.

 IMHO, you do yourself a disservice by publicly standing up for Butterfly Labs.

EDIT: For reference;

http://www.woodlaw.com/cases/butterfly-labs-and-bf-labs-inc-bitcoin-miners

http://www.scribd.com/doc/217190032/Butterfly-Labs-Production-of-Requested-Information-December-6-2013
http://www.scribd.com/doc/217190033/Defendant-s-Memorandum-in-Opposition-to-Show-Cause-and-Violation-Report-Sept-3-2013
http://www.scribd.com/doc/217190031/2014-01-28-USA-v-Vleisides-Transcript

THE COURT : "Now, there is a stench coming from Butterfly Labs. It's a strong smell. It's not enough to send you to prison today, because, to be quite honest with you, if it was, we'd be talking about 24 months in prison. It's not -- I think it's too close. I think Mr. Bourne did a very good job of testifying, and it assisted your defense greatly. But if I find out that there is this fraud word involved in this part, you know, Mr. Vleisides, as we say here at the courthouse, you need to get your toothbrush and get your things in order, because fraud will not be tolerated, you understand that? So I would work very hard to make these consumers happy consumers who you've dealt with."

We are 4 pages into this thread, without any answer as to price or purchasing. Have gone from advertising a 1TH miner without any ability to buy it, to now announcing a 1.5tHs product without any pricing or further updates as to the original offering.

How does a plebe like me buy something from you folks now, for shipment tomorrow ?

Yeah, waiting for the next batch as well Hopefully the next one I buy will be closer to 1tHs instead of the current 950gHs I'm getting

 I purchased my unit by paying BTC directly to Bit-Tech. No problems.

Would it be possible to provide us a download link to a RasPi image we can use to restore our units in the event of an SD corruption ?

Please provide more details and photos.

 I purchased my Qiangminer via Paypal.

FWIW, if given the option to use Paypal, I would have an interest in purchasing another unit. I'm at the point where it's becoming unpalatable spending BTC to acquire mining equipment :|