I don't know about which merchants buy damaged weapons etc..But I heard that town rep also effect to items price (along with barter skill)
As far as I know traders are interested in a few kinds of items and barter does not have any influence of that.I.e. Jacob, the trader from Hub will buy and sell only BG and EW weapons and ammo, and ARMORS as well, but do not buy any SG weapons.Moreover this will be a tragedy if the barter skill/perk will give you an option to trade with everything with ALL of merchants. Just imagine that you wish to buy some EW weapon and every signle trader have only some fruits and tabbaco leaves...http://www.fo2238.fodev.net/wiki/MerchantsAbove you will find the list of merchants that appear in FO World. Just check what they buy/sell and pay a visit to the right one.
Ok, so far most of the traders wont buy most of the items I can offer, so I wonder, if there is some hope in the future for that to change.Does barter skill determines what items u can sell to some traders?I mean, it might have sense , if you have high barter , to be able to sell junk to everyone
Stop your whining and complaining the barter system is great the way it is.
Its not problem to have different merchants buying different things. But problem is i walked whole wasteland with 10x m60 and no one wanted to buy em from me. At end i science them.