$250 coupons = $600 Z9 mini for batch 2 hmm.
The way I see it, if Zcash doesn't fork by Dec the $600 batch 2 Z9 mini will break even at least.
If it does fork, well that's good for my gpu farm.
The worst case scenario is the Z9 non-mini having way superior efficiency than the mini. The ProgPOW github did mention equihash ASICs have a potential 100x efficiency gain over gpu and the Z9 mini "only" has 10x efficiency. Link:
https://github.com/ifdefelse/ProgPOW#equihashNothing risked, nothing gained. If things look good on July 14, I will be in for a few more $600 Z9 minis/doorstoppers.
Yeah I can't possibly sit by and do nothing. $30k in GPU humming away ($20k on equihash).
Hedge bets, I bought a batch 1 Z9 and now two more.
Agreed - ZEC is 65% of Equihash revenue, so whatever they do will determine how fast this becomes a door-stop.
30,000 sols @ 900W
my gpu do 10,000 @ 4,000W
If they all fork, my GPU are making good money again.
If ZEC doesn't, or is slow, my Z9 are at least ROI+
Total BTC for 3 * Z9 = 0.36
GPU have earned me 6x that, I owe it to them to hedge the bet.
EDIT: I doubled down. 5 * Z9 now on order. I had a friend who I helped with batch 1 who gave me both his coupons.
0.59 BTC total spent for 5 units (1*batch1, 4*batch2) that's about 80 days GPU profits for me. I don't want to stop this hobby and I feel now, either way, I can continue towards 2019

I'm in with you. However I think crypto prices are depressed now, don't wish to sell crypto for cheap. Hoping for $750 Eth/$9000 Btc in the next 4 weeks before jumping in to buy.