I will never understand why someone would feel like they need to own an assault rifle.
I have about 6 different types of assault rifles, from AK's to AR's to a Saiga. I have four AR's a 16" a 20" a 24". I then have an 16"AR that just shoots .22lr. The AK and Saiga are just fun.
Now the reason for having these is not for when the zombie wars start although they will come in handy for that I have these merely for the fact that I really enjoy shooting.
Most people don't understand that Assault does not mean automatic.
I do not own an automatic weapon and can't in my county. Also these assault weapons that you don't understand why I have never leave my safe, they are for fun and competitive shooting. I can almost guarantee you would have a blast shooting it at the range, which is exactly why I have it.
My wife and I each have a pistol next to our beds, and a gun or two throughout the house, for defense. But most of my fun guns some which are the "evil black rifles" never leave the safe except for range visits. We are both responsible concealed carry members and love to shoot. So that's why we own them if that helps.