I would keep the books. I don't know how many I have but throwing out any I like is pure sacriledge. I mean that. We keep books. They are mine and they are my friends. I am still to forgive my mother for throwing out most of the books I had as a child and teenager after I went to Uni. I am having to re-buy most of them for DS.

I don't know if DS will want to read all the books I have. I don't mind - they're for me to read, him if he wants to. Getting rid of 3-4% of your books that you don't read isn't that much of a problem for you, but it would be for me LOL!