Had I known the seller was working on a deal with someone else I would have inquired about making a pre-payment via PayPal or something. The way we've always handle our deals, was that I pay cash upon pickup. Despite an open line of communication with the seller for several days, I had no idea anyone else was even interested in it.
It's just my bad luck that the thing goes unsold for 3 years, and then, the day before I want go pick it up, it's gone.
Oh well.
Better luck next time // If at first you don't succeed, try, try again // Hang in there, baby // What doesn't kill us makes us stronger // etc., etc.