If you don’t pay, the bottom-line is that you lose. It may look like you’re not losing, but you are.
Cost of Apache: $0
Cost of Red Hat Linux: $0
Running www.scripting.com using Apache on Red Hat Linux: Priceless
The word “free” has many meanings, as does the word “open.” I’ll leave it as an exercise of the interested reader to investigate how those words apply to software…