thinking about getting  a 92FS Brigadier , it is used, I have not seen the gun yet but will later...is $650 too much?  I looked online and prices are all over the board on this one...from $500 to $800...

Inox or Bruniton? Overall condition? When they were readily available last year, new black Brigs were $650-ish up to $700. The stainless versions ran to $700-750 or so.

$650 for a used one seems a tad high - but if stainless and like new with all the stuff might not be too bad.

its a J92F700M (as per the label on the case) so not the stainless.. it is BN unfired in the box.  I'm going to look at it in the morning.

If BNIB it's in the ballpark IMO. Private sale or dealer? If private then saving on tax is a bonus. There's no telling when Beretta will be making another Brigadier run, and 92-series guns in general are in relatively short supply currently so if it's as advertised and you like it, I say go for it. $50 one way or the other isn't much in the grand scheme of things. If you get it be sure to show it off to us!

ETA: A quick look on G-broker for Brigs shows a very small supply currently available, so I think you're in good shape at $650 if you like it and want it.

I ended up getting it... I traded for it. I did alright

Nice! It looks new - glad it followed you home. I suggest adding a D-spring to improve the DA trigger - and then lots of ammo. Enjoy your new Brig.