I would REALLY like it if there was some way to filter the marketplace to show me only things I DO NOT OWN. It would be really nice when you are searching for new things to NOT see the stuff you already own in that list. It’s particularly true for the free content. There’s 20 pages of that and I have a lot of it already, so when I want to check for new stuff or just stuff I could use but haven’t bought yet, a like “filter by not owned” would be real handy.