Game Stop offers Final Fantasy XIII-2 Collector's Edition for PlayStation 3 (pictured) or Xbox 360 for $59.99 plus $3.49 for shipping. That's the lowest total price we could find for either platform by $16. Sales tax is added where applicable. It features digipack packaging, including a slipcase 4-disc official soundtrack, and contents of concept art book, bound directly into the packaging.
Update: Apply coupon code "HOTD5" to cut the prices above to $54.44.