Individual boxes for individual lighthouses are a must for collectibles sakes, but aren't worth a tinkers d--- if you ever have to evacuate your collection in a hurry! Living in a hurricane prone area, I always have to keep in mind that I may have to move my collection in a very short period of time and maximize what I can take and how I can transport them.
Foe general storage I break down all my boxes and stack them in issue numerical order on a closet shelf. The packing material goes into the trash.
For evacuation purposes, I could not possibly move my collection if I had to repack every piece in its own box. For this purpose I keep several (6) liquor boxes with compartments for 12 1/2 gallon bottles. Wrapped in bubble pack and slipped into these compartments, I can transport 12 lighthouses per box safely and at one time.