I have sold many many cars on craigslist... and have bought many as well.. I personally don't like to offer because 1. my offer is going to be considered a low ball... or 2. I should have kept my mouth shut and offered less!! I know that everyone selling something has a number they wont go past.. that's what I ask for when I ask "whats the lowest you will take" .. makes it easier for everyone.. and yes the obo is just a start for the range that you want to sell it in... So when someone asks whats the lowest you will take.. just tell them! There has been several times when a seller wouldn't just give me a number so I said forget it...
