I kept all the boxes to my N64 stash.I still cry over my mother throwing out my comic books and my old baseball cards. Some old toys become valuable.
Remember the movie Citizen Kane? He died thinking about his sled, "Rosebud" It got burned up in a furnace.
The answer is it’s up to you.
One charity near us is very good in the toy/game/children's book category. It supports a school.Some are probably not of interest to anybody and are worn and can be thrown out.