I have it set up to show Platform Categories, and I strive for completeness, so I like to split each system when I can into Region, Public Domain/Homebrew etc. That way I can have all the different box art, which for me, aside from having everything in one place, is a big draw for using Launchbox. I spend far too long just browsing the art, and like someone mentioned above, I like to create my own for games that are missing it.
When it comes to importing games I like to take it slow, getting the names right, fixing errors, reducing the file sizes of the images, adding metadata, and yeah playing the games too . As you can imagine when you have a platform with a large library, this can take a while. Heck, I'm still working on several, and will be for a few months to come yet.
I don't have the licensed version of Launchbox however, so no Big Box for me, I don't see the point of all those bells and whistles when I'm gaming on a laptop. So no movies, marquees, logos, cart images, back of boxes. I keep it simple with box art and a title screen, that's all I need.
I'm on the fence on combining games at the moment. I do it occasionally, but for the most part I'll just go with the latest version and delete the redundant ones.
Also the Virtual Boy is a handheld, and I'll die on that hill. ?