Cheapest I could find with base.com next cheapest at £29.95.
collectors edition also contains:
Fliptop packaging containing the FINAL FANTASY XIII game, plus:
* FINAL FANTASY XIII Original Sound Selection: Soundtrack CD including a selection of music tracks from the game that are especially chosen for this Limited Collector's Edition by composer Masashi Hamauzu. The CD is presented inside a slipcase featuring artwork from FINAL FANTASY XIII, and also liner notes that are written by the composer.
* The World of FINAL FANTASY XIII: Hardback book featuring character artwork, CG rendered artwork and environments from across the game production.
* Exclusive Art Prints: 3 highly collectable art prints showing artwork of the Eidolons, powerful summoned allies of the lead playable characters in FINAL FANTASY XIII
* Unique 'Brand of the l'Cie' decal: Collectible decal featuring this most iconic symbol from the game storyline