Should Software Be Free?

After our discussion in class I started to think more about the idea of software being free and where the ownership falls. I think that software should not be free for the public. Although I understand that some people want to create free and open software for the chance to show others their skills but in the long run, I believe that there should be a charge on software being used by the public domain. Personally, I feel that if I was spending my time creating some intricate piece of technology and it was a full-time job, I should be receiving compensation for my hard work. I don't understand why the same idea is held for creating a DVD but some people think that it shouldn't be held for software..