OK, hate to do this, but I have to disagree with you. There is a more serious problem involved. You said, “ I fail to see a problem here, other than the potential for a rise in the demand-for, and cost-of ammunition.”
Good handguns are getting more expensive, too.
Good shotguns are still fairly reasonable. They also provide a nice audible deterrent. Nothing quite says "get out of my house" like the sound of a 12 gauge pump jacking one into the chamber. Of course, concealed carry can be a bit problematic.