Everytime I think about getting a Pelican case or something for my knives I realize that I could instead buy a Sebenza for almost the same price so stick to not having anything. I sit at a roll top desk in my room where I have my laptop and stereo system. I have a row of folders behind my keyboard, some more folders on the small desk shelves above those, and then I have a small bookshelf I installed onto the wall next to my desk and in front of my books I have more folders. Then I have my older less valuable knives just chillin in a cardboard box in my closet that I like to go into sometimes and do some exploring. I keep thinking there must be a better way to do it, however this way works pretty good for me and everytime I go to the ol' cardboard box I see knives that I haven't seen in years and get to re-enjoy them which is fun.
I hear people talk about the Harbor freight Pelican like boxes and looked at them the other month. They look like they're built pretty dang well and the one I looked at had foam slots that you take out that fit the 3.5" bladed folder I had on me well. I might get one of those someday for my more expensive knives. However then, like you said, then you can't see them. First world problems... Either way, I feel super blessed to have what I have.