I dunno. I've got a major key entombed in plastic sitting in a Safe Deposit Box and sometimes I wonder what the point is. I have no children. My nieces and nephews are spoiled sh*ts who wouldn't care one way or the other and if they got a hold of it they would just cash out and add a bag of money to their already silver-spoon spoiled ungrateful lives. Right now in my will it's left to a 22 year old friend of the wife's who doesn't like me and I don't like him. And no he doesn't give a sh*t about comics.
I seem to be of a minority opinion here but I believe this stuff has a shelf life if you're talking about collecting for selling later. I don't care about the movies. I know of no young person that reads comics. It's nostalgic for us, not them. Yes I understand your children read comics and books because they're special. Most kids today don't read tangible print. Try telling a kid today you've got the first Roy Rodgers action figure still in the box. Who cares?
If I sold book I could probably buy a Porsche or two and that seems as if it would be more fun. But no, I made a commitment to the 20-year grand experiment and if I arrived at the idea, it'll probably fail.