N.B. If you don't want to upgrade and are afraid one errant "update all" click will remove your installed copies of iWork '09, you're safe: like the iMovie '08 upgrade, the new iWork apps are installed side-by-side with the old versions. If you update, you can find the old versions in /Applications/iWork '09.

If the iMovie '08-like SxS install is to be the judge of how Apple views the suite, iWork '13 is definitely meant to be an incomplete "reboot" that will mature and gain features back with time. Until then, if you need those features, iWork '09 is still there.

Interestingly, on the iLife side, iMovie '13 is installed side-by-side with iMovie 9, but not iPhoto.