It might be time to request Madden NFL 08. It has not dropped in value since the end of August and 400 points is pretty cheap for a game with a Metacritic score of 85.
Here's a list of games to hold out for because they are dropping in value week-after-week:
- Burnout Paradise
- Elder Scrolls IV: Oblivion
- Gears of War
- Halo 3
- Orange Box
- Tom Clancy’s Rainbow Six 2
- DiRT
- Don King Presents Prizefighter (I wouldn’t be surprised if this one starts dropping value week-after-week)
- Elder Scrolls: Shivering Isles
- Fight Night Round 3
- NHL 07
- NHL 2K6, 2K7, and 2K8
- Tom Clancy’s GRAW (I’m currently playing this one, and it’s HARD)
- Viking: Battle for Asgard