granted, neither have much but they do have some.
Don't remember all the pricing from Walmart but they had these guys in their clearance isles: Bee laptop thingy for kids, HftD duel pack Ironhide vs. Bonecrusher and Starscream vs. Mudflap were something like $20 or $25 a pop (some boxes had stickers saying $30 but I checked the price on one and it was in the $20 range, just can't remember exactly what it was 'cause I didn't buy any of 'em), the legion class 5 pack (the Ultimate Gift Pack) for $15 and Leader Bee w/ deluxe Starscream. Bee had a sticker said $45 and I didn't price check it because I honestly didn't care, but there were a bunch of them in the clearance isle so if they're like the HftD packs the price will probably rings up lower.
K-mart has their human alliance K-mart exclusives 60-70% off


(note: they were on sale already it seems and they put 50% off on top of the already made sales price. The one with Sideswipe had a sticker saying $22, but the isle tag had said something like $32 and then there was a giant sign that said 50% off. Long and short, the pack with Side's was $11. Check the regular toy isle and clearance if you want one because they were in both)
Couldn't pass up a few Human Alliances when they were so cheap... Didn't own any until now. Lol