Shotguns are only for defense? Mine is definitely not...
Personally, I (and almost every other person I've heard on this topic) say that shotguns are by FAR the most versatile firearm. There are so many choices of interchangeable barrel types and lengths plus various loads to choose from with shotguns. There is no other firearm that can effectively hunt all flying birds and small game. And also be effective with large game in close to moderate distances. Then there are things like trap and skeet shooting (IMO... more fun than anything else that can be done with a gun, of any kind). Myself, I find hand guns to be much more limited in usage.
Just goes to show...everyone's got an opinion...
It's also my opinion that the sound of the bolt slamming shut on a semi-auto shotgun is more frightening than the sound of a pump...
The fact that shotguns happen to be good for home defense is just superfluous icing on the cake. A feature that I've never once in my life used, and never had reason or occasion to think about using... ever. I just can't live like that. Either I've just been lucky, or my Labrador retriever(s) (past and present) must be doing a good enough job of keeping the bad people out of my unlocked house.
GRRR-ROOOOOOOF! ROOF! ROOF! GRRR-RRRR-RRRR-ROOF!
translated as
"Come on in! Welcome, I love it when strangers intrude in my space."

