I keep my hunting shotgun, a break-open single shot, handy for HD purposes because I know it like the back of my hand. 'Course I'm way up in the north woods boondocks where major home invasion crime is awful rare.
Just my personal feeling, but I'd be nervous about keeping a gun that was too tricked out for HD. If I ever had to face a jury for shooting a burglar, I'd prefer that my weapon looked like something farmer John might have leaning by the door.
I'd probably feel differently if I lived in an area with a higher crime rate.