"One thing I try to drive home when speaking or giving an interview about Linux and open source software is the concept that, unlike commercial software, open source doesn't need more people to use it. You can take your time and use what you want when you want.
"Commercial software development sees income from several places--initial sales, installation, support/maintenance--and therefore the companies that produce commercial software are focused on driving customers to upgrade and buy more licenses, which drives income to the secondary service and support business/partners..."
