Gamestop has 20% select Pokemon cards boxes and products, mainly this looks to be off of MSRP. Not the best deals in the world, but they have some of the decent ETB's that generally are not on sale anywhere else.
Hidden Fate (10 boosters): $40
Cosmic Eclipse (8 boosters): $32
Team Up (8 boosters): $32
Unified Minds (8 boosters): $32
Other deals on battle boxes and other things, but not great deals.
Free shipping on $35+
Thanks to KingCrutch for finding this... a good deal if you are not picky about what booster packs (especially if you want the extras).