Howdy SteveSatch,
If you are going to be scouring Gunbroker or Auction Arms, you will invariably run into Joe's Pawn Shop. I have had some good experiences with them and have had some bad ones. The last experience was the worst. My first bad experience was buying (3) Sig 229 mags, they looked good in the picture, nearly new and shiny black, came to me in prime black, recoated. The prime black grew on me after a few days so I kept them. The last time I purchased from them it was P94 mags, again all nice and shiny in the pictures on the auction. The mags showed up and had initials ground fairly deep into the sides of the mags, large letters and all the mags had the initials. I emailed Joe's and they said they didn't have any more and never answered why they sent mags with ground-in initials. My guess is that thy would hope that a buyer wouldn't take the time to send them back. I can pretty much attest that Joe's uses a standard picture over and over again for their mags and what you get may not match that picture at all. Buyer beware. Check out their feedback they give when people aren't happy. Pretty nasty stuff.
Just hoping to save you all a little time and pain.
EDIT: To be fair, I did have what appears to be 2 other good transactions with Joe's.