Why? oh Why?
My ex used to collect Star Wars everything lol and I remember the day we were going through some of his old things and he had discovered that a few things were missing. He called his mom and she told him that she had sold them at a yard sale

I had never seen him that mad EVER! He still has a few things, but I doubt he'll ever get over the fact that the others are gone (he has a son now, so I think for him it was something he wanted to pass on).
Don't give away your collectables guys or let your mom do it either, because it will mean something to your kids one day when you pass those things on to them.
As for me, I collect cobalt, it's weird I know lol but for some reason it just does something for me.
Speaking of collections, there is a guy that has this massive Star Wars museum I think and I used to have the link on my computer (it is INSANE), but I seem to have to lost it.