First, relax. No need for name calling (in your earlier comment), no need for getting overly excited with exclamation marks. Maybe there's a case to be made for better authorship and I welcome feedback, but as an honest suggestion please read http://www.paulgraham.com/disagree.html. It is very helpful as a guideline for making constructive criticism.
Second, different reasons for why the principle doesn't hold water resonate with different people. If it doesn't resonate with you because some other reasons seem to you more profound then please add to the discussion (as you've done in different comments), just be wary to do it well even when very passionate about the subject.
It's certainly no worse than "overly excited", which is a pretty lame dismissal of both my points and my passion. The exclamation point was incredulousness at your non-sequitor, you being the author of the article and the instigator of this whole thread.
But that's not what your article was about! You weren't pushing a rough awareness of opportunity cost, you were saying that it's a "fallacy" because in most cases you can't calculate it down to the penny. See my other comments.
I for example see no learning/entrainment value out of cleaning my apartment
What about the value of a less stratified society? Ever see Metropolis or read Brave New World? Ever live in a country like Brazil or India where the moneyed have servants to do everything from cooking, driving (few in India drive their own car!), and even raising their children? Yes, I want those people to have jobs, but no, I don't want to live in a world like that, or anything like Metropolis. And I don't want to be so elite and spoiled that cleaning my fucking toilet is beneath me.
I make well into 6 figures, though I just quit that job and will likely make much much less to contribute something better to this world than I have been, something better than what pure and cold capitalism has been telling me is valuable.