Where will you put your case? In a cabinet, on the floor under the desk, or somewhere else? Will the computer be in the living room, or in a dedicated room?
I think it's important only if your case will be seen by you or others. People come often at my home and my computer is on my desk, in my TV room (I'm single so it's not a problem, but I bet that I'll be buying headphones soon lol) Therefore I bought a good-looking case. If I was to put it in a wardrobe, or in a cabinet, then I would've bought a case with more features for the same price, just not as good looking