Welk that's the thing about free software: you're never gonna have the One Ring To Rule Them All where there's unlimited choice. When people are free to make it how they like it, many will do just that. Of course there will be leaders, centers of gravity. My theory: the harder something is to make (and the more strongly it's subject to the network effect), the fewer variants of a solution there will be. The easier it is to come up with a solution, the more different ones there will be. As long as there's freedom, people are gonna opt for different ways.