Access to the source code confers an advantage
Service Call

In times of economic stress, you can add value to your services by leveraging the resources of the FOSS community.
"How do you make money with Free Software?"
To me, the answer is simple. How do most people make money with proprietary software?
After all, most "computer people" do not work for a company that packages software for consumption by end users. Most computer people are systems administrators, integrators, educators, value-added resellers (VARs), and other people that do not contribute to the actual packaged software product. Others are "support people," who answer customer's questions about how to use the software.
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