I present to you the fruit of about 30 minutes of work:
If you spot any inconsistancies please PM me.
Prices: http://www.newegg.com/
Performance:
And for the 965/955 per Vesseblah's request.
A few core prices weren't able to be found on Newegg.com. While the really old cores were left out of the graph, a few prices were improvised by taking the average of 12 prices randomly pulled from Google.com shopping. Outliers of $50 dollars or more from the average were not included and a new number was drawn. Luckily I didn't have to draw too many.
Graphs which are original to me that appear on any site other than MMO-Champion are stolen and should immediatley be reported to both me and the webmaster of the offending website. Thank you.