I think this may have actually been done in store since from recollection, the Wheelie/Sideways box set was on special for a very cheap price at Target recently whereas Bumblebee/Soundwave was not.

I reckon some sneaky bastard's decided to swap the toys around so that when it came to checkout time, the price scanned up as the cheaper Wheelie/Sideways pack but they managed to score Bumblebee/Soundwave instead.

Okay, so who was it? Fess up!

(this obviously rules out the MISB and MIB collectors on the forum )