I will fully admit that most of my WoW time is based on one goal (given that I haven't raided for months, PvP is dead, and everything else is stale pre-Cata), and that is to hit the gold cap. I'm making a final push at the worst possible time. I tried half as hard a few months ago and made gold easily, but now I'm refining my thought process and strategies just to eek out the final 45k or so I need.
Ultimately, this is highly beneficial. I inadvertently discovered the saronite shuffle at the beginning of LK and didn't have the common sense to ride that as long as I could. I got in, made a ton of gold, bought my mammoth, and got out more or less. I tapped the market as needed, but was content to hover around 20k to 30k gold as needed. It's really only the past six months I've made a passive (and now aggressive) goal to gold cap before Cata.
That said, margins are low and volume is down. I have a few relative cash cows, but am steadfast is my desire not to fire sale. I think that approach is wrong, and I'm willing to fall short of my goal in order to be better set for Cata and beyond.