Quote from: DevelopmentBank on June 19, 2018, 08:01:07 AM

Quote from: TheronB on June 15, 2018, 03:03:07 PM

Quote from: makerain on June 15, 2018, 02:13:05 PM

When will our refunds come through for spending $2000 on these $850 miners!!!!

You will earn more than the difference in the time between the batches, especially if you OC.

Not really. It still doesn't make much sense to screw over batch 1 investors. Here's the math behind it:

$2000-$850 = $1150 <- total difference that you need to make up

Estimated profits (ASIC is OC-ed to 15k sols, conservative)

   1st week of mining: $30 per day * 7 days = $210
   2nd week of mining: $25 per day * 7 days = $175
   3rd week of mining: $20 per day * 7 days = $140
   4th week of mining: $15 per day * 7 days = $105
   5th week of mining: $12.5 per day * 7 days = $87.5
   6th week of mining: $10 per day * 7 days = $70
   7th week of mining: $8 per day * 7 days = $56
+ 8th week of mining: $6 per day * 7 days = $42
-----------------------------------------------------------
Total value mined after 8 weeks (2 months = equal time to receive new batch orders which only cost $850 per Z9 ASIC) = $885.5

You would have earned more if you just waited and bought the $850 version. To be specific you would have $300 ($1150-850) more if you simply buy the latest batch. Fu bitmain.

Your math is speculative and, in my experience, inaccurate. There tends to be a far more gradual slope once a batch is shipped with big dropoffs when a new batch is delivered (or a competitor's hits the market). I really don't think it'll be down to $12 by week 5, though a lot of external factors are involved in trying to determine that (coins forking, gpus switching algos, increase/decrease in coin value, etc).

Also if the trend you outlined continues, which if it was accurate there is no reason to think it wouldn't, your point is incorrect. You will not earn more with the second batch, you will merely lose less. Which is a pretty important distinction, especially as coins are traded/increase and decrease in value.

None of that is defending Bitmain's handling of the Z9 shipments, mind you, just pointing out bad math.