Comment 21 for bug 45944

There isn't any ubuntu-server seed. Installing the serverguide package by default would require the creation of an specific seed, just to install one package.

It would also go against the principle to install a minimal set of packages for ubuntu-server. The serverguide package is not required on an apache2 or mail server in production.

The reason to install the serverguide by default is to improve the first time user experience. Bug 159371 may provide a different approach.