[mmt]

* It happens all the time, and 5-10 minutes of downtime for reboot just to add a comment to an apache configuration file is insanity.*

Agreed, since that comment doesn't warrant any deployment at all, but that's a strawman.

Especially if there's a problem and you need to rollback

This is, of course, a philosophical difference. How can one be sure that the rollback actually results in the previous state? For me, the certainty outweighs the speed increase.

Installing a new version of a package for every single change would be a huge amount of overhead

My reaction to this is that you must be doing something vastly different to install a package. Unless you're talking about an environment with just a handful of servers (in which case, why even bother with CM?), the overhead of building a package of text files would be less than that of checking them out from version control.