Found my last couple of sets this past weekend as well, so I'm finally (temporarily) caught up. Stumbled upon a ton more of all 3 of the newest sets today at my local Target. Unfortunately, Target's jacked their prices up on them from $4.79 to a whopping $5.99 now. Bastards.
On a separate note, and one that I've probably already asked:
Are there any differences between the new X-Wing or Millenium Falcon (or their respective figures) and the originally released versions? The originals didn't have electronics did they? Is that the only difference?