I'm uber-honest when I sell vehicles and price accordingly (and clearly state same).
My time is too valuable to screw around dickering on a $1500 car.
Like Kickstand, it does get tiresome when they want to start talking you down using the same flaws/issues I already identified (and baked into the pricing) as bargaining chips.
Now, the last two Harleys I sold were "mint" (i.e. low miles for age, zero scratches/dings/dents/rust/dull chrome, tasteful quality upgrades, mechanically perfect) and priced accordingly. They both sold for full asking price.
This is the Pub. Leave common sense at the door.