Not really surprising. A lot of people who make good money at their jobs have more cash to spend on leisure things than they do time to farm. It's been that way since the first MMOs. A friend of mine made a couple of thousand selling Everquest characters/items. The last time I looked the global market for virtual goods was at about 1.2 billion in annual sales. It's probably higher now. It's quite possile if you dedicate your time and energy to it. I just don't find it interesting enough. You could probably do better day trading penny stocks on the real stock market if that kind of thing floats your boat.