This isn't really a deal since it's MSRP, but when I was at Target today, I noticed that the red case "Greatest Hits" version of Mafia 2 includes all of the content from the Collector's Edition, as well as the 3 DLC expansions (2x Jimmy, and Joe's Adventure). That ends up being over $30 worth of DLC for free.
As with all Greatest Hits - this is $30.
As with all Greatest Hits - this is $30.