How much does it cost?

How much does it cost?

computer + electricity + internet + CD burner and CDs = Linux
I'll let you do your own math.
Note however that a few do charge for their distros, but they aren't
all that common, and can be worked around. Also, if you lack internet
access or a CD burner or CDs or you just want to, you can normally
order CDs of the distro for a few dollars apiece.