The LGS is not the best way to market guns to a widely dispersed customer base.
A lot of other specialty businesses - independent bookstores, electronics stores, haberdashers, shoe stores, sporting goods, pharmacies, quilt shops, hardware stores, yarn stores, model shops, etc. -- have suffered, or just closed up and went away, from competition by large internet businesses or big box stores with lower overhead and greater scale.
It seems like the remaining small businesses are very much driven by the personal engagement of their owners -- and they tend to disappear when the owner gets old or loses interest -- or when the rent goes up. A gun business must be one of the most frustrating businesses to be in, too -- with all the rules, regulations, and attendant risks of selling guns.
I wonder how much the gun business suffers from the "pass through" taken by the major gun distributors, who act as middlemen between the gun manufacturers and the sales outlets. What percentage do they take? Wouldn't it be cool if you could order a gun directly from the manufacturer, cutting out all the middlemen, and have it shipped directly to a local FFL?