Really, so you're claiming that 20 * 13 = 1500? Wow...
the typo is irrelevant for the conclusion. It didn't lead to vastly false numbers.
But lets go back to the USD assessment. The only way your figures work out is if you have 100% prediction ability or you use hindsight, neither of which are considered acceptable investing methodologies.
No. An investment into bitcoin mining is a way to buy future bitcoins at current market price. Buyers of the August 2012 minirig bought the prospect of earning future bitcoins (>3000BTC) by spending bitcoins (3000BTC). The fact that they may have spent USD is irrelevant, because it is a different savings vehicle and looking at BTC/USD is only relevant for overhead costs (rent,electricity) which are not priced in bitcoin.
Due to delivery failures that prospect has shrunk to less than the bitcoins spent for buyers who haven't received any hardware to date. On top of that, buyers of ASICMINER now have the alternative to spent 420 BTC on an equivalent amount of hashing power - and that's where the profit loss becomes apparent, because hardware on hand is usually sold around prices similar to the expected ROI.
Once again, your entire premise is flawed. If you (or anyone) were so good at predicting the bitcoin price back then, why are you not a multi-billionaire? If you knew BTC was going to go up, especially as much as it did, why were you not mortgaging the house, selling your mother and pimping out your cats and dogs to buy BTC? You'd be an @#$%@% idiot not to... yet you didn't, why?
Hindsight investing is great, except it's a bunch of shit, which is why comparing the price in BTC of anything in August 2012 to something in 2013 is a bunch of shit.
I understand that you would like to discredit the validity of DeathAndTaxes' assessment. However, this is not hindsight investing. That is market forces at play. Would the USD/BTC be $10/BTC right now, the eruptor blade would still cost 420 BTC, because that's what the expected ROI is in terms of future bitcoins.
I urge you, please don't try to misguide new people coming into the mining game by playing on their insufficient understanding between the relationship of the exchange rates vs. the viability of mining investments. Your company has done enough harm to the mining community by trapping/destroying a vast amount of capital with unfulfilled promises.
ADDENDUM: topic was moved:
https://bitcointalk.org/index.php?topic=283286.msg3029211#msg3029211