I personally refigure the average eliminating the highest and lowest bid when they go out of wack with the rest. I think that is probably a little better than the median. Median will probably often give similar results, but not a lot of the time.
(hide) If you only look at some of the discussion boards on a regular basis you can add them to your favourite boards list by going to the Board page and clicking "Add to my favourite boards". (pauloaguia) (show all tips)