Such rifles are some of the best self defense arms you can get, especially in times of civil unrest. Look at the LA riots - multiple threats at multiple ranges. An AW would have been the perfect weapon to defend yourself there. Not to mention the visual deterrent that such arms present. Just the sight of it would send most bad guys packing. You can also shoot AWs much more accurately in tense situations without near as many hours of practice as most people need with a handgun, and your range is better (handguns are great for concealed carry defense situations, but I would rather have an AW in my hands in times of civil unrest). If they tell you that a shotgun is better, tell them that most people don't like the recoil of the shotgun and explain to them that without some training and knowledge the shotgun is difficult to use. Not to mention the fact that it is a point blank range weapon in most cases (only good out to around 100 yards, with slugs in a smoothebore). Using buckshot beyond 25 yards significantly increases the chance of an innocent bystander or something else that you don't want to get hit (gas lines, etc.) to be hit. You can also fire a few warning shots with a AW (provided you have a high -cap mag) without using up too much of your ammo if you think that scaring the bad guy away is a better alternative for you (sorry - trying to think like a liberal). Simply put, AWs are a great weapon for people who want a good, dependable weapon for defense and don't want to or don't have time to practice that often.
I hope that some of these rambling thoughts help. Good luck.