With three children living at home, I have limited space to display my gaming collection, even with four bedrooms. I used to have a room devoted to my gaming stuff when the girls shared a room. But also, i gave it up for them & sold most of that stuff. That was even before I joined this site.
For display purposes, I dont have everything out. Not even close. My consoles pre-Wii are in their original boxes in my bedroom closet. My collectors edition Zelda books are (mostly) kept put away inside a large gun safe. I rotate out what swag I have out. Currently in my curio, the Skyward Sword Link & Scervo statues are displayed. Once my new Zelda Skyward Sword Link statue arrives, I'll swap the two out for the new one. I have one Zelda scroll hanging while the other four remain rolled. I switch them out every so often.
My collection is small by comparison with many others on this site and I choose to focus on one goal at a time. Nintendo stuff is my broad collecting goal. Narrowing it down, I specifically look for "key" games such as Zelda, Mario, Star Fox & the like. Narrowed down even further, Zelda is my main focus.