At the Dallas/Richardson, Texas location today, they had about 8 copies of Guitar Hero Metallica (360) for $15. Also still had a large stack of Halo Wars for less than $10. I also picked up Condemned for $7.99. YMMV at other Microcenter locations.
All the games had a lot of markdown stickers so if you wait you can probably get them cheaper.
All the games had a lot of markdown stickers so if you wait you can probably get them cheaper.