I kind of feel like all this mining hardware is going to pay off, in USD, not so much in btc. Not even close in terms of bitcoins, but it will be huge to the exchange rate.
That makes no sense. If it doesn't pay off in bitcoins, then you're better off buying bitcoins instead of a miner.
And what do you buy bitcoins with?
He's right. The initial cost is in flat not BTC which you've had to buy or obtain in some way that cost you flat.
I could just as easily say that I could make more trading BTC with leverage, or trading gold....but that's not the point, nor the topic of this thread...it's about KnC Miners and mining.
The initial cost can be fiat or BTC, since KNC accepts bitpay. If a Jupiter is 60 BTC and you don't think it will pay back > 60 BTC then you shouldn't buy one.