It's worth about a speed pot in game. There haven't been many sales in general on this forum as of late, but I'd say 3-4 fg per speed. Wis/dex/vit are probably about the same as a speed. Maybe about 7-8 fg per def and atk. Life and mana are of course valued at slightly more. ~30-35 per life and ~20 per mana ? Don't quote me on those. They are estimates.
Use this link to see if anything is worth keeping. It's also very useful for doing trades in game:
http://www.realmeye.com/current-offersHopefully this helped a bit.
