The production cost is quite low once you have the chip.
The reason why you see them keep selling and even mining themselves because their cost is way lower than an average miner.
my point exactly if the top 5 don't sell for 6 weeks starting today growth will be tiny and they can all mine at a profit.. you would hardly see any real increase in the network. hmmm what were the last few diffs lets see:
june 29 to jul 12 3%
july 12 to july 25 8%
july 25 to aug 08 5 % so for 42 days it looks like they did this.
then someone broke ranks aug 08 to aug 19 maybe bitfury
here is my point they no longer need to sell much to us and they can all mine at a profit as long as they have 1 watt gear and pay 10 cents a k watt they make money.
they do not need growth . at 1 watt and 10 cents a kwatt they will all make a fortune if the stifle growth and keep it at 2-5%
you have valid logic and it suites me just fine as well: I have as many S3 as I want at home and as many as I want SP-30 coming for hosting.
Flat network would be darn perfect at this point, but i don't think manufacturers will play this game because of bitfury indulgence.
they feel that they have to respond, and we (miners) are getting pummelled in the absence of any price growth in the last 10 mo (on average).