Let me see you using open source and compete.
Here are exactly the tools used by my company (operating a commercial website):
- Ubuntu for desktops
- Debian on servers
- Apache for a webserver
- PHP
- PostgreSQL for Databases
- I use Vim for development, others use jEdit and some use Netbeans.
- Git for version control
- OpenERP for internal organization
- Redmine as a public bug tracker
- We needed an upload site (a la Rapidshare) a colleague spent one week developing one internally (no open source one suited our needs).
- Sphinx as a search engine.
- Pygment for syntax coloration.
- A python server to run OpenERP
- A Ruby server to run Redmine.
All of these are open source. Not only are we competitive but we're generating over 500 00 euros per year in turnover. (with a 200%+ growth rate - 170 000 euros in 2008). Actually our ability to cut cost by using open source software (often hacked to suit our needs) is what makes us competitive.
I'll even go further by saying that we sell books; the content of our books is published under a creative common license (anyone can reproduce). We even distribute free pdf versions of the books we're selling.
O'reilly Media is one of the most important computer books publisher in the world. Almost all their content is free (Tim O'reilly, the founder, is actually on of the founders of the open source movement).
Red Hat does over 700 million$ a year from selling an open source product. IBM did 18
billion dollars from its Linux business in 2008 (one of the worst financial crisis of the last 10 years). A huge part of Google codes are open source.
Freelancers get super paid too. Richard Stallman was paid over 250$/hour for his consulting business. And this guy is a free software extremist. (He won't even use a web browser !!)
Many things could be argued about the quality of open source, but don't say that you cannot be competitive with it!!
At the same time, we just bought our FIRST software licenses for a security software called LastPass. If you can afford a commercial software and have no satisfying open source alternatives, you shouldn't be stubborn either