In CoX, toward the end (in the last year or so), I sometimes had a harder time finding complete sets of uncommon stuff at Wentworth's than rares. I think this was because people generally tended to just convert uncommon and common IO stuff directly to Inf via the NPC vendors rather than try to auction all of it off, just for the sake of saving time. In some cases the NPCs gave you MORE Inf for your swag than the market could be expected to.
On the one hand, I liked being able to quickly cash out my unwanted crap, on the other hand, I would have liked to have some chance of getting an uncommon recipe or two from WW, and sometimes they just weren't there and hadn't been sold for a week or longer.
I'm not sure how to try to fix this problem, but maybe it would be good if the auction house only dealt in rare nd very rare) stuff and the NPC vendors just gave flat buy/sell prices for common and uncommon stuff. That way you could always just sell or buy the common/uncommon stuff you need and use the auction house just for the rares and very rares.
I don't know, what do you think?
R.S.O. of Phoenix Rising