I am the same way with books I don't bend corners, write in them and all mine are in pristine condition.
I also hate to throw them out but I tried selling them at a $5 a piece, trade them at a two-for-one book store they didn't want them, give them away but no on wanted them so I tearfully took them to the road hoping someone would stop and pick them up - no dice. So the garbage man came and cussed me for having to pick a ton of books up off the ground and toss them.
What a waste!
And mine where a lot newer than the ones you're talking about. XML, ADO, etc.