I didn't think that Pure Heroine would be similar either. I thought that ER was going to be a lot more red but I am happily surprised.YASSSSSS! Now that's the ER I want!! Oh I have PH too, interesting, I didn't think they were in the same family. ER looks nicer though.
Edit: Wow and look at how your swatches show how Acai and Rebel are basically the same except for the finish!