by Coreborn » Mon Sep 14, 2015 7:09 pm
It can be done both for vendor prices and AH. There is a reciver addon called PriceDB, and there might be an old version of Goingprices somewhere on the internet. What these addons requires to be functional is data.
First you have to use sellvalue to find all the prices to make a database, and than extract the savevariables file into the addon. The same can be done with auctioneer scans to supply the data for Goingprices. There is even a tool so people can share all there scan data and merge it together.