That is a poorly constructed graph (in the OP... the second is meant to be poor) I only came in this thread because it said graph in the title, but that is a waste of a pair of axes.
You shouldn't draw lines between the points for when the price drops, it's like saying the price was slowly dropping all the time.
The PS3 launched at £425... the only reason it may have been cheaper is stores were having trouble selling them. And I presume they are using the standard pro model for X360, so unless they don't seel XBoxes without Natal in for 2010 then the price increase makes no sense.








