blupaisan, you don't need to give the overly judgemental people a reason why you chose to keep or not keep photos in your possession... I'm sure they have trashed some photos in their lifetime and fail to realize that you could have simply done the same instead of being awesome enough to share such with lovers of vintage photography... ;)
I have so many, I cannot possibly keep them all. I live in a tiny apartment with no storage. I am the 'last' stop for this set of photos... no one else wants them.