Batman Arkham Asylum CE

Batman: Arkham Asylum is due out this summer for the Xbox 360, PlayStation 3 and PC and Eidos has announced details for the Batman: Arkham Asylum Collectors Edition.  The CE is set to include the following:

• 14″ Batarang with stand – matches the Batarang’s in-game design
• Arkham Doctor’s Journal – 48 pages of notes on Arkham’s inmates
• 2 Sleeve Digi-pack, including: Game disc, Behind-the-scenes DVD
• Code for downloadable Challenge Map – Exclusive “Crime Alley” map, available immediately
• Full-color Manual

I wouldn’t mind the Batarang for my collection, but what is this collectors edition going to set us back?  I guess we will have to keep a look out for pricing of this collectors edition, and is the price a factor if you really want the extras that are included with the CE?