Mmm. Astral Dynamics from 2009 has different content. Not so much the 'energy work' part of it, but the other stuff. But if you have the 2007 of it, I don't know- I have both, and like them all. I'm not sure how to answer this. If you're a collector in the sense of methods and such, maybe. But the main difference in the editions is how he put together the routine. This may or may not be valuable to you.