a .org investment site could be used for micro loans/investments to people in 3rd world nations, like Kiva.com, but I think the word "cash" is kind of not too fitting for such an endeavor. "Cash" makes me think of something sleazy lol.
My point is, someone who is so inclined to start another Kiva might like this name, even though I don't.
It could also be used for an investment blog.
I would personally list it for $895 or something with make offer and take anything above $300, or just let it drop when renewal comes.