In the last 2 years I have sold a few shotguns on Gunbroker and I can tell you that market is weak... definitely a buyers market. Here are some of the shotguns I sold. You decide on whether the prices are high or low or normal.
Beretta 687 Silver Pigeon II Sporting w/ 30" bbls___ $1800

AYA #2 Sidelock-Ejector 12ga___ $2500

AYA #56 Sidelock Ejector 20ga___ $3250

Beretta Orvis Uplander 20ga___ $1800

AA Sarriugarte Derby SLE 20ga.- $1850

Beretta 686 Onyx 28ga.___ $1250

Bernardelli Hammer Gun 20ga___ $1300

Grulla/UA Boxlock-Ejector 20ga.___ $1400

Another AYA #2 Sidelock 12ga___ $2400

Laurona 502 Feather Sidelock-Ejector 12ga.___ $1300

Adam