RHEL or CentOS?
Should companies like hosting providers use RHEL or CentOS on their production machines?
Red Hat Enterprise Linux comes with official support from Red Hat, Inc. based on a SLA. But many companies have their own technical personnel and rarely require 3rd party support.
Should such companies use RHEL even though CentOS is built upon almost exactly the same code? Or should their customers choose? Large customers? Business-critical solutions? Governmental agencies?
My company mainains hundreds of servers, many running CentOS (migrated from FreeBSD), a few running Debian, but no servers actually running RHEL.
Under what circumstances should companies choose for Red Hat Enterprise Linux or CentOS?