Griffin on 26 June 2008
The link provided will give you the information on sales for all of the Playstation systems and games. The links on the side will give you all the charts for each quarter and fiscal year. Sony tracked systems that they made before and they now track systems sold to retail, as you will notice on the site provided. For sale prices by region wiki might be the best place.
http://www.scei.co.jp/corporate/index_e.html
