I've been reading many reports of Wal-Marts across the country cutting the cards in half, so that they could sell each of the two figures individually at $5 each. Can you believe that crap!?!? If you see this happen in your local Wal-Marts you should complain to the store manager about that, and how you should report them to the Better Business Bureau. That's what I would do.
It turns out that this might not be WalMart's doing. I've heard of more incidents, and I have a theory.
Have any of the reports included findings of the Clone Troopers or the ARC Trooper from the value packs? My guess would be no. I can see this happening: someone (probably an army builder) buys one complete set, but wants more of the Clone Troopers. However, they don't want more of the Anakin's and Yoda's. Those two figures both have the barcode on them. So, the person who bought them might be cutting the cards, keeping the bonus Clone Troopers, and returning the Yoda's and Anakin's. They're then getting their money back, and effectively getting the Clone Troopers for free. PROVIDED the return clerk isn't a complete dullard, and might actually notice that something's wrong with the incomplete cardback.
Nice scam, huh?