+1
The bribing traders thing is silly, gamey, and too easy. Let our Charisma (you know, the D&D stat that governs the attitudes people have toward you), and maybe our reputation (save the tieflings? +20% value for sold goods to merchants in the grove) govern traders' attitudes.
The fact that prices change depending on which character is selected just makes things more tedious, especially in multiplayer. It essentially turns one player into the trade-bot, which is annoying for everyone.
Both of the above combined is just blegh.