Hassat Hunter (or anyone who might know) - could you provide some more specific info on the effects of Barter on purchase/sale prices at different ability levels? I also just saw you mentioned in another thread that the NPC's Attitude affects prices as well - which I hadn't realized, but which makes perfect sense - so this may be a bit more complicated than I expected.

Either way, although I still agree with Lynma that it would be interesting to have some "scavenger/gambler"-type traders who are willing to sell things that they haven't identified themselves (though these NPCs would be the exception rather than the rule), that would still raise the question of how the item was being valued in the first place, assuming neither the trader nor the player knew exactly what it was. Hmm...