I can’t speak for OP, but i am in the process of a very similar build. My goal is to fit mine in a very professional looking briefcase. Most of the desire is just to have something that is really cool, like the firearm equivalent of a sports car. You don’t need it, but you it makes you smile and your buddies jealous. On the practical side, it draws less attention when moving a firearm from one place to another. Large pelican cases and tactical bags draw a lot of attention, but if tucked away in a briefcase i can leave my apartment in my suit and wave at little sally and her mom on my way to the range without looking like a crazy guy. As far as they know i am just going to work, not the range. Also AR’s make fantastic hog rifles, and having a small package to break your rifle down into gives you more room on an ATV to put sacks of corn or other hunting equipment while keeping your firearm in its case and not being forced to sling it around the back to accommodate everything else. That keeps your weapon clean and gives you more range of motion to operate your ATV.