By having a map editor, replayability now becomes infinite. You don't have to wait for new maps to be released, you can simply go and make your own map or download other user maps. And with the sharing system we'll have with being able to upload maps to a central server (as opposed to only peer to peer), before you even download a map you will be able to see what the community feels is a good map through the rating system. And this tool can encourage an entire community of creative map makers, who might normally say, “If I was able to, I'd make the map this way, or that way". Rather than just talking about it, you now have the ability to go ahead and do it! You can even take another user's map, and if you like most of it but would have done part of the map in a different way, then you'll have the ability to edit the existing user-created map (with keeping credit to the original map maker). This sharing option will hopefully get the community to put their creative heads together and collaborate to come up with even better maps.