To give you some perspective, I just sold a nice players condition scared stiff, with nib mirror blades and gory eyeball shooter, earlier this week for $5250. I was not looking to maximize my price, but wanted to be objective and fair given his condition and history of recent sales.
I had over 30 pm's on this machine alone within 2 hours of listing.
Could I have gotten more, absolutely. However, I'm satisfied with the price and the buyers is thrilled with the purchase.
List yours at 6k and it will sell today.
Best of luck,