There is a sale going on at CC for the week of July 4th but a lot of the games are already marked down. I confirmed this today when I went to CC in north Houston. I was able to pick up Mercenaries-Xbox and Polarium-DS for $8.96 each and sticker price was priced normally, but the register rang up the sale price. Here is the complete list of games so far, Your Mileage May Vary
OmegaBob at Avault also mentioned having the clerk do a price check *before* paying, as not everything is in the system or guaranteed to be included for the sale. I'm attaching the list in a text file.
Those DS titles are music to my ears, I'll be getting one next paycheck but I can start collecting games now.