The last several handguns I've purchased were purchased from pawn shops.
Pinned SW Mod 38, ~90% $325.00
Ruger Super Blackhawk, stainless, pristine, $300.00
Ruger Mark II pistol, LNIB (seriously, I don't believe it had been shot, with box, spare mag and lock) $200.00
Ruger Security Six, good condition ~90%, $225.00
When you buy from a pawn shop you've got to know what you're looking at, whether that be antiques or firearms. If you're buying a revolver, it's good to have learned
Jim March's checkout. Ditto for semi-autos. It also helps if you're a repeat customer, because the price on the tag isn't the price you're going to pay. Pawn shops are places where price can be negotiated. If you're a good customer, they're more likely to steer you to good deals.
For example, several years ago I told my pawn shop guys that I was looking for a bolt action rifle as a gift to a nephew and if they found anything decent I could get on the cheap, to let me know. He told me to wait a couple of weeks, something was coming off pawn I might be interested in. I dropped in a couple of weeks later and he showed me a really nice Howa 1500 that he said he could give me for $125.00. I wrote him a check immediately. The nephew got a great rifle that he's been hunting with for three years and I introduced a kid into the shooting sports. Not bad for forming a relationship with a pawnbroker.