I am poor as dirt by today's standards, and always have been. I make the majority of my cash by myself, so a few hundred mil net worth is all I've ever had.
Since I have join Sythe though, I have sold alot of upgrades for fast RSGP, but that was all put into skills so I could max my character as fast as possible. All the training was still done by hand, and all the cash and items I have were 90% gained through my own money making methods in game.
I'd love to just buy a few B one day though if I could afford it.. man that would be sweet.