Any style in mind ? Or just as long as it shoots ? [ Or, rather..fires ! ] Honestly, there is always a reason for a firearm having a lower price. Sometimes you can get a real deal on a quality piece, but not often. Usually stock architecture , wood choice, quality of lock, and style of barrel will dictate the price. A straight oct to round as an ex is less expensive than a swamped oct to round. I've handled some smoothbores that felt more like 2x4's than guns