In the old days, people would call or email about the gear advertised and then make an offer. Pretty normal, logical stuff.
In more recent years, I'm getting a lot of 'what's your best price' messages. I can't think of a lamer or dumber negotiation tactic. They don't want to make an offer, so they're essentially asking you to haggle with yourself on their behalf.
I used to be polite about it, but now respond with 'the best price for me is the asking price, the best price for you is not for me to figure out'.
This is not really in response to the OP, just a little rant.