So the point many people are trying to make is not that they would have made more USD by buying BTC directly instead of a BFL miner but that they would have more BTC plain and simple. The exchange rate doesn't matter and your point is moot.
/school
but you are living in a vacuum of your own making.. you are surrounded by new entrants playing a different game
the 'ROI's are not based the same for everyone... since many people have creative ways to buy miners that they cant really do the same on buying BTC, then the cost basis drops which means they can mine less BTC and still make ROI
I know this is hard for the old skool stackers to understand and swallow, but just look around.. there must be a reason that pre-orders still sell well even though the BTC in / BTC out never adds up anymore right?
Not really disagreeing with you, just pointing out how things have changed
/reality