I agree with you. However, OpenBSD (at least -- I'm not as familiar with the others of late) kinda has a similar issue as far as wizards. In RedHat, you might click on a checkbox in some GUI to turn on a service. In OpenBSD, you modify a flag in /etc/rc.conf. Conceptually, there's little difference. My point being that you could take the same mindset and just fliip a switch and now it's done. Of course, with OpenBSD, it's much easier to see what's going on, as you know everything that was modified and you can easily go look to see what that affected.

Also, while the Unix System Administration Handbook is quite good (probably the best such book out there by far), I have two caveats. The first is that there's also a Linux System Administration Handbook that looks identical. I wouldn't get that one over the Unix one. Second, it's quite expensive for a paperback.