It's really not much different from going to an auction sale. You make your offer/bid and so does anyone else that wants to. Why should the seller limit himself by putting a price on something when someone might just be willing to pay more. I bypass these guys but then that's just me. I don't dicker. It's their parts to sell in whatever manner that pleases them. If the price suits me, I buy. If it doesn't, I pass. I tune as much stress out of my life as possible. Works for me.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.