Most of us here have very large collections filled with toys from the modern lines and some of us have also kept the original toys from Kenner that got us interested in the first place.
It would take a very large room to put everything on display and it's unlikely that most of us enjoy that kind of space.
So what percentage of your collection is out on display and how much of it is boxed up sitting in some dark room someplace? Do you rotate the display items? What reasons do you keep specific items out and leave others in storage? Do you do "themes" or just random displays of favorite items? Do you dream of having everything out one day?