Story based on true events.
90% of my income is from AH broking. Working the AH. So I usually spend a decent amount of time on the AH. I have never once farmed for gold. I have been working the AH since day of release, literally. I have seen some really good deals in that time.
But the best one came about two or three years ago. I found a Pendulum of Doom on the AH for 15g. I was reluctant on buying it at first because I had forgotten what it was. But, when I am skeptical on something, I usually buy it anyways, just to prevent myself from missing a good deal. And, not to mention, when I started looking at the item level and stats on it, I knew it had to be something twinks would want.
I ended up buying it for 15g. Later realizing what it was, I sold it instantly in the trade channel for 4,500g. Which actually was a good deal, it was worth around 7k back then. Since that day, I have never seen another POD in the AH. Not one.