As mentioned in the Spondoolies Tech reply that's not the correct price for 3 units if you want to participate in this Group Buy. You can even get less than 4995$ if you have a previous order with any other manufacturer.
Even if it doesn't look like it, i still believe that difficulty is slowing down and let me explain you my view:
Sep 04 2013 86,933,018
Jan 02 2014 1,418,481,395
Apr 05 2014 6,119,726,089
I took these example of past difficulty because they are on similar dates so it's easier to calculate things.
From Sep to Jan we had an increase of 16 times, while from Jan to Apr we have an increase of just ~4.x times.
Let's compare in BTC too. Examples are for 1TH/s:
- with the Sep 4 difficulty - 5.78BTC/day;
- with the Jan 2 difficulty - 0.35BTC/day;
- with the Apr 5 difficulty - 0.07BTC/day.
This is for me a clear sign of slowing down. Also if we take into considerations your example please explain me how do you expect to have a 35 billion difficulty on 29 August and 70 billion just 2 months late which is simply unrealistic. This group buy will add just 5.4 PH in August, maybe 6-7PH in September and 7-8PH in October.
Secondly, considering that there are only 2 companies that i know that are working on their next gen chip (KnC and AM) it also means that there won't be so many units available for sale in that period of time.
Thirdly, if there are more people that think like you then from the start you are wrong because the whole big rush that we witnessed last year is more or less gone this year. Last year i saw Avalon team grab a couple of million $ in a matter of a few days just for chips. People had to pay for assembly too. There were MUCH more of money being invested and a lot FASTER too in mining equipment last year than this year. (i think HF got 25 mil$ from preorders and so on).
So claiming that people will invest a lot more and much faster than the last year is simply wrong and bad intended. There is someone else that pointed the difficulty thing earlier in this thread and i asked him to take difficulty speculations to some other thread. This thread is for people interested in the group buy, not for difficulty speculations. As i see you only have a single post outside Spondoolies threads. If i will delete some of your posts i hope that you understand why.
Edit: It seems that i'm not the only one to think that we can't keep adding MWs like crazy:
https://bitcointalk.org/index.php?topic=262052.msg6324550#msg6324550