I know what you are talking about. Yes it would involve a lot of work. If we change it so game entries can have these additional attribute fields:
- release country (if known)
- languages (for game/manual used as a tag/based system so that multiples can be added in various combinations)
Then what you want is for the categories to be "smart." Instead of the games being in categories, you want the category to fetch the games that apply to it. So if you wanted to look at PS3 Japan, the site would show you PS3 games released in Japan. If you wanted to see PS3 games from UK, it would only show you those. If you justed wanted to see PS3 games without additional filters, it would show that.
So it would be a lot of work, meaning adding all that information to existing entries, if we get those types of fields. And probably this type of display would work best to only be available as a profile option at first.
Basically, you want to control how your collection is shown to you. Does what I am saying make sense?