Hey Bigdaddy,
I believe Silverball (Dave) sold his recently and he was asking $3000. I never played Dave's but from all reports it was exceptionally good and in great condition (small wear on PF).
I think it sold within an hour or so once listed. My understanding is even one in bad condition still goes for $3500 + and with Daves in A1 condition was very very very very cheap. I don't think you'd see one like that ever again.
I guess it depends on whether you are purchasing from a dealer or privately. I would think one with no PF wear, no cabinet wear, in 100% working condition, privately would go for around $5000 - $7000 etc.. From a dealer, shopped with warranty I'm guessing $5000 upwards to $9000 - completely depending on condition.
But I don't own one so this is only a rough guide. Quite often I'll jump on Ebay US and see roughly what they are selling for (after $ exchange) which should give you an indication only.
