It'd be nice to be able to download skins and terrains in "packages". For example, if you wanted to remove AH for whatever reason and completely reinstall it, after you downloaded and installed the game itself, it would be convenient to be able to go to the downloads page and select a package that included all of the skins, or all of the terrains. That way, you could just get them all in one neat package, instead of either waiting for the game to download and install them, or going to the downloads page and having to download them individually.