Since this is a thread on vendor issues, I don't know if this is a bug or a design decision, but when I hover over vendor items it shows one price, but if I double click to try and buy it, the price suddenly increases. It's like the "hover over" is showing the price if I sold it to him, and I only get to know the real price (which doesn't seem to be a consistent multiple) by actually trying to buy it. Curious.
