I never realized Shirik was behind Auctioneer Market Price. Small UI world
Tekkub is probably right regarding the complexity behind the scene, but as far as usage is concerned I find it pretty easy and efficient. I am not the kind to scan the AH every hour and I still get decent pricing I think. Basically all I do is a full scan once or twice a week, plus some search for specific items every now and then. Whenever I have things to sells I just use Appraiser "Market Value"
without really checking prices further than that.
Like I mentioned recently in another thread I am convinced some people actually "exploit" auction addons virtually inflating prices so that any automated valuation will be fooled, regardless the math and formulas used behind the prices. Then if you do not pay attention you either pay too much or overprice your own auctions. I guess it all comes down to how much time and attention you want to spend at the AH versus how much money you will actually get back.