Everything said here has been fantastic so far. I can't echo the comments enough.
The one thing I'd add is, a player count classification would be tremendously valuable, as a way to sort physical games across the entire category. It's something that isn't always readily apparent by description or tags, and can be a key selling feature for games designed towards certain group sizes. If I'm looking for single-player or two-player games, being able to quickly enter in that information would save me a ton of time.