they should have a npc that buys all items 40% of regular price

[get ran down 0]

I just think is would be a great solution and be helpful for items that are hard or nearly impossible to sell  and would make it ez for people to sell all items to the shop at once instead of keep switch thru category just would make the game much easier and give people more of a option 

[elmo 41]

This already exists. There is perdu or vannaka in edgeville to which you can quickly sell off any unwanted items for 40% of the price.

remark: not all items can be sold otherwise rare items would have a stable price and lose the value of grinding for them in pvm. Resulting in making pvm and therefor hot zones in the wilderness less active.

[ADAM 158]

As Elmo stated^.

Also if you want rid of certain items that much, put them in the lottery and hope for the best ?