I had a pretty large book collection beautifully displayed in two large shelves in my formal living room, with another smaller bookcase upstairs. When we moved across country to a different style of house that didn’t really have space for large bookcases, I got rid of all but about 30 books. Most of them I hadn’t looked at since I read them the first time. Better to pass them along to someone else who can enjoy them.
We’ve often joked that we ought to invest in a storage business since they seem to essentially be a license to print money, with little effort required on the part of management, except to keep it clean and safe. Americans need Marie Kondo when so many of them are willing to pay a monthly fee to store things they haven’t really looked at in years.