Are you all CRAZY or what 99 months ROI and ppls still buy , buy bitcoin instead, is USELESS stop encouraging them , look 1400 S9+ 150 PSU+ 100 shippment + Difficulty raises 5% average you will never get ROI are you all crazy??
Look for yourself 11T next 15 days will maybe bring if miner doesn't stop EVER which is impossible 216 $ per month reduce next difficulty for next 15 days at about 5% so will bring about 201$ one mont about 205$ next month if MINER NEVER stops 185$ now calculate electricity fees at about 120$ per month are you all CRAZY.
This shit is only making you all lose money .... stop beeing dreamers BTC price now is low simply buy BTC is way safer how can you calculate ROI of 1 year is madness
As others have said, methinks you are off your medication...
To expand on what I posted just a couple pages back...
If just starting a farm and based only on income per new miner -- Ja, ROI on them will be a bitch for awhile.
However, my
farm income from all of the other already paid off miners pays for a s9 in ~11-14 days depending on pool luck. So pretty painless once a farm is sufficiently grown in size and aged a bit
With Bitmains timing on new batch's of the s9 and me limiting myself to only 1 or 2 per cycle so far it's working out perfectly for upgrading to the s9's. Yes
even my first 'overpriced' s9 batch-1 is already paid for and now earning net income.
Started mining in mid-Feb 2014 with 2x BFL 10GHs cubes purchased for $350 each from TigerDirect , got hooked. Total out-of-pocket from Feb to about late May: $8,725 and $4k of that was for a miner from AMT/Bitmine.ch ordered on Feb. 28, 2014, not for Ants. So total fiat spent on Ants is $4,025 USD. As June of 2014 all miners I've bought for expansion/upgrades have been paid for by BTC the farm earned and that initial $8,725 is long ago repaid.
As for reliability: Currently I'm up to 75 miners bought from Bitmain ranging from their S1's through the s9. Most of course now long since retired and donated to Sidehack for their parts, just s7's and soon to be a total of 6x s9's running now. Exactly 2 miners with troubles total, 1 s5 and 1 s7 both with DOA boards, thankfully quickly RMA/replaced by Bitmain. Works for me...