The top 1% wealthiest players control a mere 24.25% of the game's gold. Half the people who answered the survey had at least 35,000 gold. However, the bottom 75% of players controlled a mere 14% of the game's gold. This describes a huge disparity between the top gold earners and the bottom.
This is perhaps less than surprising, given the chasm between the serious Auction House players and the more casual farmers, and those who sometimes need to lean on their guild for repairs! But it's really fascinating to get some hard numbers, instead of just idle speculation. If you're looking to increase your WoW wealth, Gold Capped is a great place to start.
This year, Xsinthis is looking into how the average player's wealth has changed in the year since and with the recent expansion, as well as botting, gold buying and selling, and general exploits to help get a figure on these activities in game and how they relate to wealth levels. The survey is completely anonymous, and questions on the latter are 100% optional.
If you're interested in helping Xsinthis out by answering 5 short questions, head to the survey. It only takes a moment. And if you're interested in finding out more, check out Xsinthis' blog.