You all are saying the same thing! Same message! OBO means you may sell it for less if you don't get your asking price. FIRM means don't come around and offer me less, that is not an option. Why are people trying to make more out of OBO than it is!
Lol, Its not how it was, but it is how it is NOW.
Example "$50 Or Best Offer" suggests/implies you are willing to take the best offer you are given whether it be lower or higher than your set price.
My comment was be cause you asked in post #6.