@JosephEK you might have better luck getting answers with that if you started a thread for it yourself; not meaning to be rude, just felt it needed said.
On-topic: For me personally the draw of bricks is as others have said, it can be hidden. So for "bragging rights" about how small the case is, you can exclude it
What I would like even more is a way to make the brick itself even smaller. Even with internal psu's I often wonder how fun it might be to disassemble the case (I do NOT recommend this unless you are
very comfortable/knowledgeable about working with potentially lethal voltages) to cut down on its size, building the cooling for it into the case itself.