The Wall Street Journal has what appears to be an interesting article on pricing here:
http://online.wsj.com/article/SB1000...933592856.html
I'm afraid I can only raise the first four paragraphs or so through this link, but it does begin to address Sweetpea's point about fixed prices in Europe (excluding the UK). Perhaps one of our US pals can come up with the full piece. Happy weekend. Neil