I don't particularly, Rock: as I've noted elsewhere, Suse and I both understand that the chances we'll actually have to repel boarders in our home are way less than the chances we'll slip and fall catastrophically in the tub, and we probably wouldn't have them if we didn't both enjoy shooting. Its like golf; shooting a handgun is difficult in the extreme to do well, so learning to do it is very satisfying.
Still, as I also noted elsewhere, not that long ago an elderly couple was killed in a home invasion scenario not far from where we live, and a week or so ago our across-the-back-fence neighbors came home early from work and found a group of young goblin in their home looting it. Fortunately nobody got hurt, but it didn't have to end that way.
We both have CCPs, and we agree that the chances we could ever use a concealed weapon in a useful way are so low that we never actually carry (which is, by the way, an almighty pain in the ass; if you haven't handled guns a lot you wouldn't believe how heavy those suckers are when loaded). But a home invasion scenario, while way unlikely, is not out of the question, and keeping loaded guns handy in various places is not an inconvenience, so we've worked out a defensive strategy and are prepared to execute it if the alarm ever goes off. The cost of doing that is very low, so why not?
This is premised, of course, on the fact that we are happily childless. If we had house apes, or indeed any visitors on any kind of regular basis, I wouldn't have loaded guns where I can get to them easily, and if they're not within easy reach and ready to point and shoot they're of no value. If you have kids in the house a dog is a much better bet. Even if you don't have kids in the house a dog is probably a better bet, but we don't like dogs and we do like guns.