Game Case Concept

Came up with a "social media for gamers" of sorts. Game Case. Made it as a way to show off what games you have to other gamers, thought there could be additional features to sell or trade games with other people as well. I had the idea based on older websites (I don't see them as often anymore) where people would basically do the same thing with their music libraries.

Thoughts? Ways to build on this idea?