First, the re-use of names. It costs a bunch of money to copyright a name. Lots of research and investigation have to be done to make sure that the name you want to use is not a chain of whore-houses in one of your major markets. And of course, you have to make sure nobody already has the name copyrighted. So if you have a perfectly good name, and you aren't using it any more, why not dust it off and re-use it?