I've picked up several beauties from GB. Requires caution and research to be sure, but the higher prices I would have paid for my internet prizes in a store could have easily paid for another gun. And further, I would have never found these particular guns in person. The online candy store is very dangerous.
Mauser Werke, Schmidt-Rubin, Colt, Walther, HK, Weatherby, Browning, Ruger, Beretta, Savage, Bushmaster, Marlin, Mossberg, Remington, PTR, Saiga, S&W, Sig Sauer....a few friends of mine