Seems a little high for me, and I LOVE the 49's. A forum member recently bought one for under $300 if I remember correctly, though probably not in as good a condition. You may want to do a seach to find the thread/comments.
You never see them for sale here in Minnesota, if they do turn up a Model 49 will sell pretty quickly. With a box and papers $500 isn't horrible, since it's a dealer I would try to get it for $500 OTD...
Depends...is it worth a hundy not to have a lock and MIM? It is to me...I have regretted NOT buying a gun, but have never lost sleep over paying 50 or so over what a gun is going for.