I'm not actually sure if having the RC is worth it. I had already incorporated all of the errata in my PHB1 (we're not using any of the Essentials books). I'm also not sure how robust it is. I have a feeling it's going to disintegrate after a couple of sessions.
Primal Power is worth it if you consider any of the other Power books 'worth it'. Myself, I enjoyed it quite a lot, especially to get a better grasp of the Warden class. I also liked the new builds for most classes (except the druid).
Primal Power is worth it if you consider any of the other Power books 'worth it'. Myself, I enjoyed it quite a lot, especially to get a better grasp of the Warden class. I also liked the new builds for most classes (except the druid).