If you're going to comment on how cheap something is and use that as an argument, you need to dig into WHY it's cheap.
All of your arguments are about externalities as to why it's cheap.
None of these arguments about externalities were raised by the Freakonomics fuckwits because they completely undercut their point... when 90% of the time, when the Freakonomics fuckwits want to make a point, they go in search of Wild Externalities.
Externalities aren't bad, they're just things that aren't necessarily accounted for in the main discussion. Which is why the article is such bullshit.