My local Target got one of each set (I bought the Christophsis set and someone else got the Sarlacc set), and NEVER got any more. Tons of the GI Joe set, but not a single restock on the SW UBPs. Come to think of it, Target didn't get more than one shipment of the Obi-Wan/212th and Yoda/CG five packs, either, but they still have a stockpile of the Transformers exclusives.
Something strange is afoot at the Circle K Big Red Circle.