I can only speak for our Humane Society, but yes we have the same cats there month after month after month. Some have been there years. Now that the local pound has stopped taking in cats, the Humane Society is overloaded so more cats wait longer to be adopted. It's very sad, but at the same time the cats that live there have it pretty good. They have tons of friends, both feline and humane, and have a huge room with tons of cat trees, scartching posts etc. It's the nicest cat center I have ever seen.