Oh man, I'm not that rich. I've spent like five quid or something, I usually just grind and craft stuff. Maybe that's why I keep getting annoyed with the game because some **** is ridiculous to get without paying. You can also trade for the currency so you can in theory get stuff without spending any actual money.
The guy used to have "a lot" less and then a few years back he married in to a family who are doing very well, so it's his wifes fun money.