The game is being forced out of retail due to the expiration of their music license. So from May 13th -15th, it'll be discounted 90% in Steam and elsewhere.
Check it out: Steam Community :: Group Announcements :: Alan Wake
Here's a good review: http://www.ign.com/games/alan-wake/pc-743607
Check it out: Steam Community :: Group Announcements :: Alan Wake
Here's a good review: http://www.ign.com/games/alan-wake/pc-743607