You can only do the offer once per order, but if you do store pickup (and don't have to pay shipping) this is a great deal. Not sure how long it will last, I think this is one of the "flash" deals TRU has had lately, but hopefully it would help someone out. Seems like every type of Power Disc pack is available in the offer, including the exclusives.
Hope this helps someone!
http://j.toysrus.com/112114d