CF cards wear out?

[Francisco Reyes]

Not related directly to FreeBSD so figure chat would be more appropriate.

Recently I got recommendations on this list the Soekris machines and
M0n0wall for a firewall. On the M0n0Wall archives I found the following:


>nothing is written to the CF card (it is usually mounted read-only), to
>minimize the chance of wearing it out.

Do CF cards "wear out"? Aren't they like memory?