It's just bassicaly and ponzi scheme isn't it?
No, there's no way to get money out of it. There is no investment aspect to it.
Think of it as a billboard where the best position gets slightly more expensive to rent every time. There's nothing stopping you from putting your message elsewhere of course, it's just ordered by payment.
Ah well i just did read few posts here and didn't check the website itself it truth has to be told.