Overpriced? Maybe...but...
So $800 for used with no box, goodies or xtra mag does seem pretty steep, especially when you have to add the buyers fee, shipping, etc. (i've heard 17% with big box houses).
However.....on the other hand I was just yesterday, revising my "handgun values" sheet that I use for insurance purposes. This spreadsheet is a combination of completed auction prices at GB (without adder fees) and /or SCSW 4th. The reason for yesterday was that I just received my SCSW 5th Edition and WOW....some prices are getting right up there and I'm pretty sure this publication was going to press at least a year ago or so. The prices might just be 2023 with inflation still rising.
Anway...My 39-2 with box and all is on my sheet at $950. SCSW 5th has it at $1,000 ANIB, $750 Exc; my 639 is same $950, SCSW 5th is same $1,000 ANIB, $750 Exc; My 745 is at $900, SCSW 5th is at $1,000 ANIB, $800 Exc.
I sell only here on the Forum so don't have exposure to the "bidder wars" that show up on GB for really nice stuff, but I think that "scarcity" is beginning to enter into pricing no matter where you shop.
Like some above have said... factory original extra mag, box, tools, or docs can add to anyone's price, and yes condition is still utmost, but.....as always......THEY DON'T MAKE THESE ANYMORE. You need one, want one, see one for sale...only two choices....buy it or pass.