It's nice to have your collection up on Discogs. It lets you catalogue your entire collection. It is hard for those of us with large collections and old memories to remember just what we have! There was a time that I knew everything that was in my collection, long long ago! Listing in this manor quickly shows me when I have multiple copies of an album or CD that I might have been unaware of. As I go through my collection I can see when one CD or another has gone missing, I can then purchase another copy.
I once used a program called "Collectorz", entering most of the information manually. That program crashed on me several times and I had to start over! No worry of that happening with the collection up on Discogs. No need for me to backup my listings either.
Discogs have many odd, (stupid in fact) policies. I hate the capitalisation rule for one. The most popular albums have multiple releases so you have to figure out which one you have. Like
barfle I've had to add many unlisted versions and titles that weren't there previously. Discogs relies on people like us to do the work for them! Like barfle I many LP's and CD's that I still need to add. It is a huge chore when there is no other release that you can simply copy and then edit.
It's nice to see the collection value listed. It's good to give you some idea of what its worth. That value might be useful for Insurance purposes as well. Sadly if an item has never sold there is no value listed for it. So called "unofficial" release also show no value and are blocked from sale.