Ok, say you answer an ad for a used bike. You've been told the bike had not been ridden for some time.  You found the bike had older drive train then expected and shifter issues and rear wheel and both tires would have to be replaced. Good frame and fork. But the asking price was higher then you expected for the condition of the bike.  Where would you go with this?   Would you make an offer?  

That's in fact exactly what I found with the Gold Rush I purchased a couple of years ago in Tulsa.  The bike had dry rotted tires, rather stuck shifters and needed new cable.  Turns out once I got it to PCF  they were able to clean out the trigger shifters, change cables and clean up the bike.   It did need new tires but that's about it.    
 
I basically told the guy his price was high.  I made him an offer, he countered and I purchased it.