Someone posts some info, already mentioned earlier, someone else comes along with the obligatory: "source? source?"
source is pointed out once again, and then quickly dismissed saying "stop speculating prices, beleive or leave"

Is this the hallmark of rational investors?

it's ludicrous. It's already known to those that know that this is true, in fact it may disappoint some to realise it can be found even lower. So there is a problem which hasn't been addressed.

But seems it's just not real to the investors here that don't venture beyond confines of asicminer thread and  the only replies you can have there is "+1 Jutaral" and pictures of golden tickets.