Vitalious:
Your assumptions in the spreadsheet suggest that in 4 months, manufacturers will be able to pump out enough hardware to replicate the entire current(as of today) bitcoin network every 2 weeks. I don't see any technology changes that will allow for that much hashpower to be produced. If you disagree, you should run away from EVERY ASIC manufacturer out there.
Defenders of Spondollies: Difficulty and the profitability of the machine certainly does have a place in this thread. I think asking "is this a good buy?" has been relevant in most other threads. This guy may be a troll, but I'd rather not go on a witch hunt for every person who is questioning if the growth of the hashrate makes pre-orders unprofitable.
Your assumptions in the spreadsheet suggest that in 4 months, manufacturers will be able to pump out enough hardware to replicate the entire current(as of today) bitcoin network every 2 weeks. I don't see any technology changes that will allow for that much hashpower to be produced. If you disagree, you should run away from EVERY ASIC manufacturer out there.
Defenders of Spondollies: Difficulty and the profitability of the machine certainly does have a place in this thread. I think asking "is this a good buy?" has been relevant in most other threads. This guy may be a troll, but I'd rather not go on a witch hunt for every person who is questioning if the growth of the hashrate makes pre-orders unprofitable.
I'm not a troll, I just want to know there's a decent chance of me at least breaking even.
My 19% difficulty estimate was based on the last 6 month average difficulty increase. That's lower than last year, which is 23%.
If I'm way off in assuming last 6 month difficulty growth into the next 6 months, then I welcome criticism. I want to invest in mining hardware as well but I need to know I'm not chasing unrealistic profits.