A while back a year or 2 ago, someone on here was looking to buy a JP and asked me what I'd want for mine. I said it'd have to at least be $4500, but I'm not considering selling.
Then they got all crazy by telling me that the game wasn't worth that much, even with the mods.
To which I said, "like i said, you asked how much i would want, i told you the price I'm currently in it for and that it's also not for sale."
So any price that I had given would have meant absolutely nothing. Should have told him $10k.
But I'm always surprised at how defensive people get when they see a game for sale just a smidge over what they feel the value should be. It doesn't matter what people what list their machines for. They'll either get it, or not. The only reason to beat someone up because you think a machine is too much is because you either sold a game for much less and you are jealous. Or your just someone who like to correct people every chance you can get.
So to the OP, if I was interested in selling mine, I'd be right there with you. It's only a starting point.