Python linked to high salary?

Noticed this on Jarno Virtanen's weblog today:

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http://www.hole.fi/jajvirta/weblog/20040317T0701.html

Python linked to high salary?
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Indeed so, at least according to Software Development Online's[1] Salary
Survey 2003[2] (requires registration):

     Paradoxically, open-source or free-software projects are
     associated with high salaries for both staff and management.
     And, as it did last year, the object-oriented scripting
     language Python shows an inexplicable link to a high salary,
     as well. A theory that Python users might also be polyglots
     didn't pan out: Those who mentioned the language do have an
     array to choose from, but aren't the most multilingual of
     the bunch.

But of course, one can only guess what's the cause here.

[1] http://www.sdmagazine.com/
[2] http://www.sdmagazine.com/documents/s=8939/sdm0311a/sdm0311a.html
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This (the prospect of getting a higher salary) is certainly something 
that would get more developers interested in learning Python.

- Michael R. Bernstein
   michaelbernstein.com