Quoted from stpcore:If a seller lists a price and says "OBO" does that mean it's OK for the seller to decline your offer of their full asking price because they want to see if someone will give a "better offer" over asking price? I've had this happen to me once and I lost out on buying a pin and was a little surprised, lol.
Exactly what happened here. $2700 OBO became a sale at $2900. http://www.villagebbs.com/forum/index.php?topic=38092.0