Items have higher sell price than purchase price. That way I can repeatedly buy and sell an Item and generate as much money as I want. I’m in Travelers’ Camp and I can sell to Trader Cordin Refuge Gloves for 5 gold and then I can buy them back for 3 gold. It’s sililar with other items.
I think the prices are wrong, purchase price should be higher than sell price of the same item. I have version 0.7.6C on Steam on Linux.