One thing to always remember is that cpu prices drop like bricks EXCEPT the top one of each platform and that is why there are people asking huge money for a 3 year old cpu such as this.
Now the other side is that when I first started dealing in cpu's in mid 2004 these sold for $2500.00 each on ebay:
http://cgi.ebay.com/Intel-Xeon-3-0GH...1%7C240%3A1318