What I find interesting is that this guy probably has no clue what its really worth. As a hobbiest we spend money that we think is well placed, but this guy isn't the builder of this system, he took it as collateral. While I think it is worth some real money, I think this guy is going to end up waiting quite a bit of time to get anywhere near that kinda of money. Someone that has that level of funds to spend right away is either going to buy new equipment, build a system themselves or not even look on a site like craigslist in the first place. I wish him the best in luck in recuperating the funds that he held it in leau of, but if its the whole 6k hes screwed.