I hate this question. I especially hate it when I think it. However, as an adult, it is a question I must think about. And you should too (unless you're my cousin EG who needs to ask himself if he has too little). So I (and my baby Misha pictured with me above) have a couple of questions you should ask yourself that will help you determine if it's time to downsize, or keep your collection just as it is.
1.) FAD, or still trending?
You may cry. I sure did. Since I just moved to a knew home, everything has been emotionally sporadic, but it made me want to start fresh. It's all process. So don't be too hard on yourself. And if you're really unsure, then ask a friend, sibling, or the most honest person you know!