I didn't totally read through, but according to a competition on AMD's website it states the value of a yet unknown model of 8 core Bulldozer, as being approximately worth $300.
Link: http://sites.amd.com/us/promo/processors/Pages/fx-rules.aspx7. Prizes:
Top tier prizes: Five (5) AMD FX series eight-core processors. Approximate Retail Value: $300 USD each.
Second tier prizes: One hundred (100) collectible Ruby dolls. Approximate Value: $25 USD each.