|P is for Practical|
I was not suggesting in any-way-shape-or-form that contributions to CPAN don't have monetary value.
The point is that it is a statistical calculation.
People are very wary of marketing information of any kind.
If you say CPAN is worth $600 million dollars, many readers will be confused - and then go about their day unmoved.
Many of those that arn't confused, will be skeptical about the calculation method, (not bothering to find out where the figure came from of course) - and then go about their day unmoved.
On the other hand, 15,000,000 lines of code is a hard fact. Immediately obvious and tangible. Hits you straight between the eyes. Bam. :)