Your math is different then mine.
Here's
my math (screenshot below), which is crazy optimistic in every way, except for the non-overclocked, exactly as-specced hashrate. How does yours differ?
I am even by December
That's roughly consistent with my screenshot above. And it barely grows past that.
If I actually take delivery, I estimate I might get it in late Oct / early Nov. I'm postulating that since it looks like I won't even break even, that I should request a refund--and I'm here looking for second opinions.
