Kaston,
4k may sound familiar.... but seriously and with respect to a good game -
I do kick myself for passing up this trade about two years back - my SM + 1500 for one (seriously). Around the same time, i passed on another one for 7k.
Although it may be a great game, i am not a fan of the fan type layouts, and not sure i can ever pay for one over 7k. I would be too worried that the day i buy it is the top, it would nag at me too much. There are also other Pins i would want before it, so i am not the best guy to ask either....