I had to go to four ebgames before I finally found a new & sealed copy for myself. The first three had only the display copy left. I'll check for one the next time I'm in there, but there's no guarantees. That sales runs through May 1, so they should restock them at least once or twice before then, and hopefully online.
I feel your pain; I hate buying the last eb opened copy since some of the cases look like they've been mauled. I've often looked at the last display copy and sometimes the discs were even scratched up! eb needs to do what Toys'R'Us started doing and have a special display case for the shelves so they don't have to open one up.