i don't think 400+ is too expensive for a top grade component.
price wars are good but when they are this intense it is bad cause amd will lose money and may become unable to invest in R&D. in short-term, super low prices are good for the consumer, but in the long run we get fucked.
Repost!
"AMD's margins on their dual core Opteron parts are huge. On average, the second core costs customers over 3x as much as the first core for any of these CPUs. As you will soon see, the performance benefits are definitely worth it, but know that AMD's pricing is not exactly designed to drive dual core into widespread adoption. "
Anandtech
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2397&p=3
Put simply, had AMD priced at least a few lower end models better, many more folks would have NOT felt a need to upgrade to Conroe. They even tried to maintain higher prices even after Conroe kicked their ass