I have a Dre Dog "The Ave" cassette up on ebay for really cheap. Collector's item for sure... Check it out!
http://cgi.ebay.com/Dre-Dog-The-Ave...oryZ1600QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/Dre-Dog-The-Ave...oryZ1600QQssPageNameZWDVWQQrdZ1QQcmdZViewItem