$1,500 for a sandwich might seem an exorbitant amount of money for just a sandwich, but perhaps not, if you make it from scratch. And by scratch, I mean starting with wheat seeds and spending the next six months growing and collecting the rest of the ingredients [1] (link via Jason Kottke [2]). I think most of us would know where to get salt from (he gets it from three gallons of ocean water) but what about rennet [3] to make the cheese? Or how to properly kill [4] and dress a chicken?
The series [5] makes me appreciate the modern food supply chain that exists. And the $1,500 price tag not only included the raw materials (about $500 worth) but his time (at minimum wage) spent directly making this sandwich.
[1] https://www.youtube.com/watch?v=URvWSsAgtJE
[2] http://kottke.org/15/09/how-to-make-a-1500-sandwich
[3] https://en.wikipedia.org/wiki/Rennet