I'd have to agree with bhp9mm, with a few adjustments.
There are additional pieces of information that I would have to know. Are you looking for used or new? If used, what was the round count? If used, what is the overall condition of the firearm? Is the weapon a home protection firearm, or personal carry (not that one pistol cannot be used for both)? IMO I don't like dealing with someone that put LNIB (Like New In Box) in his or her add. As I see it, it is either used or new. LNIB is like a used car salesman using the term "Pre-owned" - It's used.
I would suggest shopping around, so that you can get the best deal. There are several good gun shops, as well as several classifieds.
Yeah, that's the best price you'll find. That's for a Gen. 3 though, for a Gen. 4 which is $528 at PPS. Same thing, only one more mag. and an ext. mag. release. Oh, and changeable grips.