Hi, Messersmith. I'm not nearly the expert that others here are, but I know that a blued revolver with a rubber grip, either Pachmayr or Hogue, and without the original wood will generally lower the bidding considerably on GB, though not usually as much as this one.
Also, the gun does not have a target trigger as per the description, but a standard service trigger with a trigger shoe attached. That(the shoe) will lower the bidding somewhat also, but again not down to the level of this one.
The seller also demonstrates a bit of ignorance by claiming the gun has a target trigger, and "target sights", which somehow has entered the S&W nomenclature through a number of sellers and buyers, but really isn't a proper description(a S&W either has fixed sights or adjustable sights). I don't know if this affects the bidding at all; perhaps some potential buyers see this and don't trust that the seller knows his S&Ws well enough to tell them just what they may be getting.
The above, as they say, is worth about what you paid for it. Congratulations, it's a nice-looking gun; hope you enjoy it a great deal.
Andy