Oh and this:
pricesquire was saying $13 total, divided by clicks, not times clicks
his point was re large sites: "I can only imagine pages" - no "excitement"
and "29 unique readers" (per day?) not a specific number of clicks ("$13*30" ?)
My point remains - whether it is 13*30 or $13/29*40000.... it isn't a linear progression like that. 40000 views will pay maybe $20-200 using Adsense. The current number he has with a low number of views is anomalous.
Edit- it's also not uncommon to see with low readership. It just doesn't scale like that.