Linux is free but people are also free to bundle Linux with CDs, manuals, nice installtion GUIs, and additional support. If you want SuSe CDs and support you pay for SuSe CDs and support. SuSe is not Linux. It is an SuSe commercial distribution of software built around the Linux kernel and there is free downloads and commerical CDs as well.

If you ask me, the money you pay is a small price for such a great bundle on CDROM. SuSe charges small money. However, you can download for free as well, without support:

If you want free, download SuSe Linux distribution here:

ftp://ftp.suse.com/pub/suse/

There are many other Linux distros to download here, most free:

http://www.ibiblio.org/pub/Linux/distributions/